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This section includes 7 InterviewSolutions, each offering curated multiple-choice questions to sharpen your Current Affairs knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Which type of Ethernet framing is used for TCP/IP and DEC net?(a) Ethernet 802.3(b) Ethernet 802.2(c) Ethernet II(d) Ethernet SNAP |
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Answer» The correct option is (c) Ethernet II To explain: The Ethernet 802.3 framing is used for NetWare versions 2 to 3.11, and the Ethernet 802.2 framing is used for NetWare versions 3.12 and later plus OSI routing, Ethernet II is used with TCP/IP and DEC net, and Ethernet SNAP is used with TCP/IP and AppleTalk. The type field in Ethernet 802.2 frame is replaced by a length field in Ethernet 802.3. |
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| 2. |
Which constructor of Datagram Socket class is used to create a datagram socket and binds it with the given Port Number?(a) Datagram Socket(int port)(b) Datagram Socket(int port, Int Address address)(c) Datagram Socket()(d) Datagram Socket(int address) |
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Answer» Correct option is (b) Datagram Socket(int port, Int Address address) To explain I would say: Datagram Socket (int port, Int Address address) is used to create a datagram socket. A datagram socket is created for connection-less communication between the server and the client. There is no accept() method in this class. |
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| 3. |
SSH-2 does not contain ______________(a) transport layer(b) user authentication layer(c) physical layer(d) connection layer |
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Answer» The correct choice is (c) physical layer The best I can explain: SSH2 is a more secure, portable and efficient version of SSH that includes SFTP, which is functionally similar to FTP, but is SSH2 encrypted. |
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| 4. |
Which one of the following feature was present in SSH protocol, version 1?(a) password changing(b) periodic replacement of session keys(c) support for public-key certificates(d) none of the mentioned |
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Answer» Right answer is (d) none of the mentioned Explanation: All of the mentioned features are provided by SSH-2 and that SSH-1 only provide strong authentication and guarantee confidentiality. |
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| 5. |
Secure shell (SSH) network protocol is used for __________(a) secure data communication(b) remote command-line login(c) remote command execution(d) all of the mentioned |
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Answer» The correct choice is (d) all of the mentioned Easy explanation: SSH provides high encryption and security features while communicating through a network. It is a cryptographic network protocol. |
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| 6. |
Which one of the following is a file transfer protocol using SSH?(a) SCP(b) SFTP(c) Rsync(d) All of the mentioned |
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Answer» Correct choice is (d) All of the mentioned The best explanation: SCP (Secure copy protocol), SFTP (SSH File Transfer Protocol) and Rsync all are file transfer protocols which are used by SSH. |
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| 7. |
SCP protocol is evolved from __________ over SSH.(a) RCP protocol(b) DHCP protocol(c) MGCP protocol(d) GCP protocol |
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Answer» The correct choice is (a) RCP protocol To explain: RCP is the abbreviation for Rate Control Protocol is a congestion control algorithm for fast user response times. |
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| 8. |
The File Transfer Protocol is built on __________(a) data centric architecture(b) service oriented architecture(c) client server architecture(d) connection oriented architecture |
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Answer» The correct answer is (c) client server architecture To elaborate: The FTP connection includes a Server and a Client which wish to share files. The server can have multiple clients at the same time while the client communicates with only one server at a time. |
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| 9. |
Make a precis of the following passage and suggest a suitable title :Self study means the study of the self, by the self and for the self in actual sense of the term. But popularly by self study we mean studies on own's through library books or other resources. We cannot inject any amount of knowledge into student's veins. But they should try to gain knowledge by the use of observations through their five sense organs. Self study can be done further by reading more and more wisely-written book. Periodicals, weeklies and daily newspapers are there to help us in our self-study. It is a much better source of having a background to prepare than the coaching done in masses, in schools and colleges. Self-study enriches our knowledge and also makes us self-confident and self-reliant in life. |
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Answer» Title: Self-Study Self study means studies on one's own through library, periodicals, weeklies, daily newspapers and more wisely written books. Self study enriches our knowledge and makes us self confident in life. In self study we gain knowledge by using observations and our five sense organs. |
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| 10. |
Read carefully the passage given below and answer the questions that follow:The Bald Eagle is a majestic bird. The adult bird has a brown body, brown wings, white head and large, hooked yellow bill. Younger birds appear all brown. Bald Eagles almost always live near water because their main food source is fish. Sometimes, however, Bald Eagles will eat dead animals (carrion). They will even steal food from other birds such as ospreys and gulls. It was for this reason that the famous patriot Benjamin Franklin preferred the Wild Turkey as America's National symbol. Nevertheless, the Bald Eagle remains America's symbol. Questions : (a) Why do Bald Eagles usually live near water? (b) How does the younger Bald Eagle appear?(c) Who was the famous Patriot?(d) What do Bald Eagles eat other than fish? |
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Answer» (a) Bald eagles usually live near water because their main food source is fish. (b) The younger bald eagle appears all brown. (c) Benjamin Franklin was the famous patriot. (d) Bald eagles sometimes eat dead animals, they steal food from other birds such as aspreys and gulls other than fish. |
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| 11. |
Choose the correct statement from the following.(a) PPP can terminate the link at any time(b) PPP can terminate the link only during the link establishment phase(c) PPP can terminate the link during the authentication phase(d) PPP can terminate the link during the callback control phase |
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Answer» Right option is (a) PPP can terminate the link at any time For explanation I would say: PPP allows termination of the link at any time in any phase because it works on the data link layer which is the layer in control of the link of the communication. |
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| 12. |
A link local address of local addresses is used in an _______(a) Isolated router(b) Isolated mask(c) Isolated subnet(d) Isolated net |
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Answer» Correct choice is (c) Isolated subnet To explain I would say: Isolated subnet is very huge sharing network area in this link local address of local addresses is used. A link local address can be configured on any subnet with the prefix “FE80::”. |
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| 13. |
Which of the following is false with respect to TCP?(a) Connection-oriented(b) Process-to-process(c) Transport layer protocol(d) Unreliable |
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Answer» The correct choice is (d) Unreliable Explanation: TCP is a transport layer protocol that provides reliable and ordered delivery of a stream of bytes between hosts communicating via an IP network. |
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| 14. |
All telnet operations are sent as ________(a) 4 bits(b) 8 bits(c) 16 bits(d) 32 bits |
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Answer» Right answer is (b) 8 bits Easy explanation: Telnet provides a bi-directional, 8-bit byte oriented communications facility through which operations are sent as 8-bit bytes for the server to interpret. |
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| 15. |
AbsoluteTelnet is a telnet client for _______ Operating system.(a) windows(b) linux(c) mac(d) ubuntu |
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Answer» The correct answer is (a) windows Explanation: AbsoluteTelnet was originally released in 1999. It was developed by Brian Pence of Celestial Software. |
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| 16. |
Traffic in a VPN is NOT ____________(a) Invisible from public networks(b) Logically separated from other traffic(c) Accessible from unauthorized public networks(d) Restricted to a single protocol in IPsec |
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Answer» Correct option is (c) Accessible from unauthorized public networks The best explanation: Traffic in a VPN is not accessible from any unauthorized public networks because it is secured with the masking IP address. This provides the benefit of access to blocked resources to the users. |
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| 17. |
What protocol is NOT used in the operation of a VPN?(a) PPTP(b) IPsec(c) YMUM(d) L2TP |
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Answer» The correct answer is (c) YMUM Best explanation: PPTP is a tunneling protocol which was initially used for the creation of VPNs. IPSec is used in encrypting the traffic flowing in the VPN. L2TP is used to tunnel all the L2 traffic on the VPN. |
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| 18. |
Which one of the following is not correct?(a) telnet is a general purpose client-server program(b) telnet lets user access an application on a remote computer(c) telnet can also be used for file transfer(d) telnet can be used for remote login |
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Answer» Right choice is (c) telnet can also be used for file transfer For explanation: File Transfer Protocol is used for file transfer. Telnet provides access to the command-line interface on a remote host. |
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| 19. |
VPNs are financially speaking __________(a) Always more expensive than leased lines(b) Always cheaper than leased lines(c) Usually cheaper than leased lines(d) Usually more expensive than leased lines |
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Answer» The correct answer is (c) Usually cheaper than leased lines Easy explanation: The services of a VPN are cheaper for moderate to large scale institutional networks than the services of leased lines. Though for a small scale network, it does not prove to be as beneficial as the costs are not reduced to a great degree as compared to leased lines. |
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| 20. |
In which mode of telnet, the client echoes the character on the screen but does not send it until a whole line is completed?(a) default mode(b) character mode(c) server mode(d) command mode |
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Answer» Correct answer is (a) default mode Best explanation: In the default mode, the client does not send each character typed by the user to the server, thus saving the amount of packet transmissions required for executing each operation. But the server has to remain idle until the client sends the completed line wasting a lot of time. |
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| 21. |
The values GET, POST, HEAD etc are specified in ____________ of HTTP message(a) Request line(b) Header line(c) Status line(d) Entity body |
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Answer» Right answer is (a) Request line Explanation: It is specified in the method field of request line in the HTTP request message. |
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| 22. |
In Network Management System, maps track each piece of hardware and its connection to the _________(a) IP Server(b) Domain(c) Network(d) Data |
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Answer» Correct option is (c) Network The explanation is: Network is the main entity connecting different components in a place. A network map is made to track each component and its connection to the network to ensure better network management. |
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| 23. |
A: Have you passed the test?B: ___________ A) I don’t doubt B) Yes, I doubt it C) I doubt D) I doubt it |
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Answer» Correct option is D) I doubt it |
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| 24. |
Which of the following is true for character mode operation of telnet implementation?(a) each character typed is sent by the client to the server(b) each character typed is discarded by the server(c) each character typed is aggregated into a word and then sent to the server(d) each character type is aggregated into a line and then sent to the server |
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Answer» Correct option is (a) each character typed is sent by the client to the server Easy explanation: In character mode, each character that the user is typing is immediately sent to the server which then interprets it only after the complete operation command is received. |
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| 25. |
The physical connection between an end point and a switch or between two switches is __________(a) Transmission path(b) Virtual path(c) Virtual circuit(d) Transmission circuit |
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Answer» Correct option is (a) Transmission path The explanation: The physical connection between an end point and a switch or between two switches is transmission path. The transmission path is the physical roadway that the packet needs to propagate in order to travel through the network. |
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| 26. |
A remote procedure call is _______(a) inter-process communication(b) a single process(c) a single thread(d) a single stream |
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Answer» The correct answer is (a) inter-process communication The best explanation: Remote procedure calls is a form of inter-process communication where the client initiates an RPC to start a connection process. It is used to construct distributed, client-server applications. |
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| 27. |
An RPC (remote procedure call) is initiated by the _________(a) server(b) client(c) client after the sever(d) a third party |
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Answer» The correct answer is (b) client Easy explanation: Remote Procedure Call is a method used for constructing distributed, client-server applications based on extending the conventional local procedure calling where the client initiates an RPC to start a connection process. |
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| 28. |
RPC is used to _________(a) establish a server on remote machine that can respond to queries(b) retrieve information by calling a query(c) establish a server on remote machine that can respond to queries and retrieve information by calling a query(d) to secure the client |
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Answer» Correct option is (c) establish a server on remote machine that can respond to queries and retrieve information by calling a query The explanation is: RPC or Remote Procedure Call is used to establish a server on remote machine that can respond to queries and to retrieve information by calling a query by other computers. |
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| 29. |
An RPC application requires _________(a) specific protocol for client server communication(b) a client program(c) a server program(d) all of the mentioned |
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Answer» Correct answer is (d) all of the mentioned To explain I would say: The RPC technique for constructing distributed, client-server applications based on extending the conventional local procedure calling. It requires a client program, a server program and specific protocol for client server communication to build the system. |
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| 30. |
Which one of the following protocol delivers/stores mail to reciever server?(a) simple mail transfer protocol(b) post office protocol(c) internet mail access protocol(d) hypertext transfer protocol |
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Answer» The correct choice is (a) simple mail transfer protocol The best explanation: SMTP, abbreviation for Simple Mail Transfer Protocol is an application layer protocol. A client who wishes to send a mail creates a TCP connection to the SMTP server and then sends the mail across the connection. |
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| 31. |
When were VPNs introduced into the commercial world?(a) Early 80’s(b) Late 80’s(c) Early 90’s(d) Late 90’s |
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Answer» The correct answer is (d) Late 90’s To explain: VPNs were first introduced in the year 1996. Then as the internet started to get popularized, the need for connection security increased. VPN was a great solution to this, and that’s when VPNs were implemented in the commercial world. |
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| 32. |
When the mail server sends mail to other mail servers it becomes ____________(a) SMTP server(b) SMTP client(c) Peer(d) Master |
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Answer» Right option is (b) SMTP client The best I can explain: SMTP clients are the entities that send mails to other mail servers. The SMTP servers cannot send independent mails to other SMTP servers as an SMTP server. There are no masters or peers in SMTP as it is based on the client-server architecture. |
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| 33. |
RPC is a _________(a) synchronous operation(b) asynchronous operation(c) time independent operation(d) channel specific operation |
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Answer» Right answer is (a) synchronous operation Explanation: RPC is a synchronous operation where the remote machine works in sync with the other machines to act as a server that can respond to queries called by the other machines. |
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| 34. |
A malicious attacker sends a large number of SYNC segments to a server, pretending that each of them is coming from a different client by faking the source IP address in the datagram. Which type of attack is being performed in this situation?(a) SYNC flooding attack(b) Active attack(c) Passive attack(d) Denial-of-service attack |
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Answer» Right choice is (a) SYNC flooding attack To explain I would say: SYNC flooding attack is a form of Denial of Service attack. Due to the overflow of SYNC segments sent to the server, the victims are not able to request for a connection to the server, thus resulting in Denial of Service. |
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| 35. |
Cutting of wood is a physical change. Then how it is reversible? |
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Answer» Physical change is not always reversible. The cutting piece has same properties as wood before cutting. physical change means changes are reversible and no new substances must be formed . |
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| 36. |
Which one of the following algorithm is not used in asymmetric-key cryptography?(a) rsa algorithm(b) diffie-hellman algorithm(c) electronic code book algorithm(d) dsa algorithm |
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Answer» Correct answer is (c) electronic code book algorithm Easiest explanation: Electronic code book algorithm is a block cipher method in which each block of text in an encrypted message corresponds to a block of data. It is not feasible for block sizes smaller than 40 bits. |
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| 37. |
In cryptography, the order of the letters in a message is rearranged by __________(a) transpositional ciphers(b) substitution ciphers(c) both transpositional ciphers and substitution ciphers(d) quadratic ciphers |
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Answer» Correct answer is (a) transpositional ciphers Explanation: In transposition ciphers, the order of letters in a plaintext message is shuffled using a pre-defined method. Some of such ciphers are Rail fence cipher and Columnar transposition. |
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| 38. |
Increasing of height is a chemical change or physical change? Why? |
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Answer» Both physical and chemical change. |
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| 39. |
Which of the following architecture uses the CSMA/CD access method?(a) ARC net(b) Ethernet(c) Router(d) STP server |
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Answer» Right option is (b) Ethernet For explanation: Collision detection is not possible in Ethernet without extensions. Collision detection techniques for multiple access like CSMA/CD are used to detect collisions in the Ethernet architecture. |
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| 40. |
The attacker using a network of compromised devices is known as _____________(a) Internet(b) Botnet(c) Telnet(d) D-net |
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Answer» Correct choice is (b) Botnet The best I can explain: Botnet is a network of compromised devices used by the attacker without the owner’s knowledge to perform unethical activities such as spamming. The attacker usually uses the least secure devices to create the botnet. |
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| 41. |
Which amongst the following statements is correct for “character at a time” mode?(a) Character processing is done on the local system under the control of the remote system(b) Most text typed is immediately sent to the remote host for processing(c) All text is echoed locally, only completed lines are sent to the remote host(d) All text is processed locally, and only confirmed lines are sent to the remote host |
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Answer» Correct choice is (b) Most text typed is immediately sent to the remote host for processing For explanation: In character at a time mode, the typed text is sent immediately to the remote host while the user is typing. Another mode used in Telnet is “Old line by line” mode in which only completed lines are sent to the remote host. |
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| 42. |
Is growth of a plant a physical or chemical change ? |
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Answer» Its a chemical change because you cannot revert it back to a seed. |
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| 43. |
Where should we use default routing?(a) On stub networks- which have only one exit path out of the network(b) Which have more than one exit path out of the network(c) Minimum five exit paths out of the network(d) Maximum five exit paths out of the network |
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Answer» Correct choice is (a) On stub networks- which have only one exit path out of the network Explanation: We must use default routing on stub networks. They have only one exit path out of the network, so there can be no specific path decided for such networks. |
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| 44. |
_______ allows you to connect and login to a remote computer(a) Telnet(b) FTP(c) HTTP(d) SMTP |
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Answer» Correct option is (a) Telnet To elaborate: Telnet provides access to the command-line interface on a remote computer. One can login to the computer from the command-line interface. |
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| 45. |
A remote procedure is uniquely identified by _________(a) program number(b) version number(c) procedure number(d) all of the mentioned |
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Answer» Correct choice is (d) all of the mentioned To explain I would say: Each remote procedure can be uniquely identified by the program number, version number and the procedure number in the networks scope. The identifiers can be used to control the remote procedure by parties involved in the process. |
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| 46. |
Which routing protocol implements the diffusing update algorithm?(a) IS-IS(b) IGRP(c) EIGRP(d) OSPF |
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Answer» Right choice is (c) EIGRP To explain I would say: The diffusing update algorithm (DUAL) is used to maintain backup routes to a destination for when the primary route fails. EIGRP routing protocol implements the diffusing update algorithm. |
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| 47. |
Which statement is true regarding classless routing protocol?(a) The use of discontinuous networks is not allowed(b) Use of variable length subnet masks is permitted(c) RIPv1 is a classless routing protocol(d) IGRP supports classes routing within the same autonomous system |
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Answer» Correct answer is (b) Use of variable length subnet masks is permitted The best explanation: Use of variable length subnet masks is permitted in classless routing protocols. Also use of discontinuous networks is allowed in such routing protocols. RIPv1 is a classful routing protocol but RIPv2 is classless routing protocol. |
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| 48. |
Which routing protocol has a maximum network diameter (hop count) of 15?(a) RIPv1(b) RIPv2(c) EIGRP(d) Both RIPv1 and RIPv2 |
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Answer» Correct answer is (d) Both RIPv1 and RIPv2 Explanation: Both RIPv1 and RIPv2 support a maximum hop count of 15 because they use 4-bits to store this value. RIPv1 uses classful routing whereas RIPv2 uses classless routing. The routing updates are broadcasted over the network. It notifies routers about the update so that they update their own routing tables. |
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| 49. |
Representatives of some vertebrate classes are introducing themselves. Write down the name of the class in which they belong. 1. My gills are covered by operculum. I have bony endoskeleton. 2. I give birth to young ones. My body is covered by hair. 3. My skin is glandular? Have trilocular heart. 4. I live only in marine water. My endoskeleton is made up of cartilage. |
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Answer» 1. Osteichthyes 2. Mammalia 3. Amphibia 4. Chondrichthyes |
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| 50. |
Which of the following is produced b vibrating diaphragm? [A] Light [B] Sound wave [C] Électromagnetic wave [D] X-ray |
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Answer» The correct option is (B) Sound wave. A sound wave is the pattern of disturbance caused by the energy travelling away from the source of the sound. Sound waves are longitudinal waves. This means that the propagation of vibration of particles is parallel to the energy wave propagation direction. When the atoms are set in vibration they move back and forth. This continuous back and forth motion results in a high-pressure and a low-pressure region in the medium. These high- pressure and low-pressure regions are termed compressions and rarefactions, respectively. These regions are transported to the surrounding medium resulting in the sound waves travelling from one medium to another. |
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