70 + Interview Questions in Wireless Lan’S in Computer Network Page 2 InterviewSolution

51.	Which one of the following is not used in media access control?(a) ethernet(b) digital subscriber line(c) fiber distributed data interface(d) packet switchingI got this question in an international level competition.Question is from Internet in portion Wireless LAN’s, Electronic Mail and File Transfer of Computer Network
Answer» Right answer is (d) packet switching To elaborate: Packet switching is not REALLY RELATED to media ACCESS control as it just features delivery of PACKETS of data between devices over a shared network. Internet is actually based on packet switching.

Discussion

52.	Which protocol assigns IP address to the client connected in the internet?(a) DHCP(b) IP(c) RPC(d) RSVPThe question was asked during an online interview.My enquiry is from Internet in section Wireless LAN’s, Electronic Mail and File Transfer of Computer Network
Answer» Right answer is (a) DHCP The EXPLANATION: DHCP stands for Domain Host Control Protocol. It is responsible to remotely assign IP address to the CLIENTS connected to the INTERNET. The SERVER that PERFORMS this fuction is called the DHCP server.

Discussion

53.	Which one of the following is not an application layer protocol used in internet?(a) remote procedure call(b) internet relay chat(c) resource reservation protocol(d) local procedure callThis question was posed to me in homework.My query is from Internet in chapter Wireless LAN’s, Electronic Mail and File Transfer of Computer Network
Answer» The correct option is (c) RESOURCE RESERVATION protocol To explain: Resource reservation protocol is a TRANSPORT layer protocol USED on the internet. It operates over IPv4 and IPv6 and is designed to reserve resources REQUIRED by the network layer protocols.

Discussion

54.	Internet works on _______(a) packet switching(b) circuit switching(c) both packet switching and circuit switching(d) data switchingThe question was posed to me during a job interview.Enquiry is from Internet in division Wireless LAN’s, Electronic Mail and File Transfer of Computer Network
Answer» Right option is (a) PACKET switching For EXPLANATION: Packet switching is the method based on which the internet WORKS. Packet switching features delivery of packets of data between devices over a shared network.

Discussion

55.	The size of an IP address in IPv6 is _________(a) 32 bits(b) 64 bits(c) 128 bits(d) 265 bitsI have been asked this question in semester exam.The question is from Internet topic in section Wireless LAN’s, Electronic Mail and File Transfer of Computer Network
Answer» Right answer is (c) 128 bits Explanation: An IPv6 ADDRESS is 128 bits long. Therefore, 2128 i.e. 340 UNDECILLION addresses are possible in IPv6. IPv4 has only 4 billion possible addresses and IPv6 would be a brilliant alternative in CASE IPv4 runs out of possible new addresses.

Discussion

56.	Which of the following protocols is used in the internet?(a) HTTP(b) DHCP(c) DNS(d) DNS, HTTP and DNSThe question was asked in quiz.My doubt is from Internet topic in division Wireless LAN’s, Electronic Mail and File Transfer of Computer Network
Answer» The CORRECT CHOICE is (d) DNS, HTTP and DNS Easy explanation: HTTP is used to browse all the websites on the World Wide Web, DHCP is used to allot IPs automatically to the USERS on the internet, and DNS is used to CONNECT the users to the HOST servers on the internet based on the Domain Name.

Discussion

57.	ISP exchanges internet traffic between their networks by __________(a) internet exchange point(b) subscriber end point(c) isp end point(d) internet end pointI have been asked this question in exam.The query is from Internet topic in chapter Wireless LAN’s, Electronic Mail and File Transfer of Computer Network
Answer» CORRECT OPTION is (a) internet exchange point The BEST I can explain: ISPs exchange internet traffic between their networks by USING Internet Exchange Points. ISPs and CDNs are connected to each other at these physical locations are they help them provide BETTER service to their customers.

Discussion

58.	Internet access by transmitting digital data over the wires of a local telephone network is provided by _______(a) leased line(b) digital subscriber line(c) digital signal line(d) digital leased lineThis question was addressed to me in homework.The origin of the question is Internet topic in chapter Wireless LAN’s, Electronic Mail and File Transfer of Computer Network
Answer» Right ANSWER is (b) digital subscriber LINE Explanation: DSL (Digital Subscriber Line) is the technology DESIGNED to use the existing telephone lines to transport high-bandwidth DATA to service subscribers. DSL was used to allow the early users access to the internet and it provides dedicated, point-to-point, public network access.

Discussion

59.	To join the internet, the computer has to be connected to a _________(a) internet architecture board(b) internet society(c) internet service provider(d) different computerThis question was addressed to me in an internship interview.The question is from Internet in division Wireless LAN’s, Electronic Mail and File Transfer of Computer Network
Answer» Right answer is (C) internet service provider The BEST explanation: The ISPs (Internet Service Providers) are the MAIN agents through which every computer is connected to the internet. They are licensed to allot public IP addresses to its customers in order to CONNECT them to the internet.

Discussion

60.	What is internet?(a) a single network(b) a vast collection of different networks(c) interconnection of local area networks(d) interconnection of wide area networksThe question was asked during an interview.I need to ask this question from Internet in section Wireless LAN’s, Electronic Mail and File Transfer of Computer Network
Answer» CORRECT option is (b) a vast COLLECTION of different NETWORKS Explanation: Internet is NOTHING but an interconnected computer network providing a variety of communication facilities, CONSISTING of a huge amount of small networks using standardized communication protocols.

Discussion

61.	What is WPA?(a) wi-fi protected access(b) wired protected access(c) wired process access(d) wi-fi process accessThis question was posed to me in final exam.My question comes from Wireless LAN in portion Wireless LAN’s, Electronic Mail and File Transfer of Computer Network
Answer» The correct option is (a) wi-fi protected access Easy explanation: WPA or WiFi Protected Access is a security PROTOCOL used to PROVIDE users and firms with STRONG DATA security and protection for their WIRELESS networks (WiFi) to give them confidence that only authorized users can access their network.

Discussion

62.	What is Wired Equivalent Privacy (WEP)?(a) security algorithm for ethernet(b) security algorithm for wireless networks(c) security algorithm for usb communication(d) security algorithm for emailsI have been asked this question in semester exam.I need to ask this question from Wireless LAN in division Wireless LAN’s, Electronic Mail and File Transfer of Computer Network
Answer» Correct option is (b) security algorithm for WIRELESS networks For explanation I WOULD SAY: WEP is a security algorithm for wireless network which INTENDED to provide DATA confidentiality comparable to that of traditional wired networks. It was introduced in 1997.

Discussion

63.	Which one of the following event is not possible in wireless LAN?(a) collision detection(b) acknowledgement of data frames(c) multi-mode data transmission(d) connection to wired networksThis question was addressed to me during an interview for a job.I'd like to ask this question from Wireless LAN topic in portion Wireless LAN’s, Electronic Mail and File Transfer of Computer Network
Answer» Correct choice is (a) COLLISION detection Explanation: Collision detection is not possible in wireless LAN with no extensions. Collision detection techniques for multiple access LIKE CSMA/CD are used to DETECT collisions in Wireless LANS.

Discussion

64.	Mostly ________ is used in wireless LAN.(a) time division multiplexing(b) orthogonal frequency division multiplexing(c) space division multiplexing(d) channel division multiplexingThe question was posed to me in an interview.The query is from Wireless LAN in division Wireless LAN’s, Electronic Mail and File Transfer of Computer Network
Answer» RIGHT answer is (B) orthogonal frequency division multiplexing Best EXPLANATION: In orthogonal frequency division multiplexing, digital data is ENCODED on multiple CARRIER frequencies. It is also used in digital television and audio broadcasting in addition to Wireless LANs.

Discussion

65.	In wireless network an extended service set is a set of ________(a) connected basic service sets(b) all stations(c) all access points(d) connected access pointsThis question was addressed to me in an online interview.This intriguing question originated from Wireless LAN topic in portion Wireless LAN’s, Electronic Mail and File Transfer of Computer Network
Answer» The correct option is (a) connected basic SERVICE sets Best explanation: The extended service set is a part of the IEEE 802.11 WLAN ARCHITECTURE and is used to expand the RANGE of the basic service set by allowing connection of multiple basic service sets.

Discussion

66.	A wireless network interface controller can work in _______(a) infrastructure mode(b) ad-hoc mode(c) both infrastructure mode and ad-hoc mode(d) WDS modeThis question was addressed to me in quiz.This interesting question is from Wireless LAN in portion Wireless LAN’s, Electronic Mail and File Transfer of Computer Network
Answer» The correct option is (c) both infrastructure MODE and ad-hoc mode To explain: A wireless network interface controller works on the physical layer and the DATA LINK layer of the OSI MODEL. Infrastructure mode WNIC needs access point but in ad-hoc mode access point is not REQUIRED.

Discussion

67.	In wireless distribution system __________(a) multiple access point are inter-connected with each other(b) there is no access point(c) only one access point exists(d) access points are not requiredThis question was posed to me by my college professor while I was bunking the class.My question is based upon Wireless LAN topic in division Wireless LAN’s, Electronic Mail and File Transfer of Computer Network
Answer» Correct answer is (a) MULTIPLE ACCESS point are inter-connected with each other The best I can explain: A Wireless Distribution System allows the CONNECTION of multiple access points together. It is used to expand a wireless NETWORK to a larger network.

Discussion

68.	Which multiple access technique is used by IEEE 802.11 standard for wireless LAN?(a) CDMA(b) CSMA/CA(c) ALOHA(d) CSMA/CDI had been asked this question in my homework.I'm obligated to ask this question of Wireless LAN in division Wireless LAN’s, Electronic Mail and File Transfer of Computer Network
Answer» RIGHT answer is (b) CSMA/CA Easiest explanation: CSMA/CA stands for Carrier-sense multiple access/collision AVOIDANCE. It is a multiple access protocol used by IEEE 802.11 standard for wireless LAN. It’s based on the principle of collision avoidance by using different ALGORITHMS to avoid collisions between CHANNELS.

Discussion

69.	In wireless ad-hoc network _________(a) access point is not required(b) access point is must(c) nodes are not required(d) all nodes are access pointsThis question was posed to me during an interview.My question comes from Wireless LAN in portion Wireless LAN’s, Electronic Mail and File Transfer of Computer Network
Answer» Correct choice is (a) access point is not REQUIRED Easy explanation: An ad-hoc wireless NETWORK is a decentralized kind of a wireless network. An access point is usually a central device and it would GO against the RULES of the ad-hoc network to use one. Hence it is not required.

Discussion

70.	What is the access point (AP) in a wireless LAN?(a) device that allows wireless devices to connect to a wired network(b) wireless devices itself(c) both device that allows wireless devices to connect to a wired network and wireless devices itself(d) all the nodes in the networkThe question was asked during an internship interview.This intriguing question comes from Wireless LAN in section Wireless LAN’s, Electronic Mail and File Transfer of Computer Network
Answer» RIGHT choice is (a) device that allows wireless devices to CONNECT to a wired NETWORK For explanation I would say: ACCESS point in a wireless network is any device that will allow the wireless devices to a wired network. A router is the best example of an Access Point.

Discussion

Explore topic-wise InterviewSolutions in .

Which protocol assigns IP address to the client connected in the internet?(a) DHCP(b) IP(c) RPC(d) RSVPThe question was asked during an online interview.My enquiry is from Internet in section Wireless LAN’s, Electronic Mail and File Transfer of Computer Network

Internet works on _______(a) packet switching(b) circuit switching(c) both packet switching and circuit switching(d) data switchingThe question was posed to me during a job interview.Enquiry is from Internet in division Wireless LAN’s, Electronic Mail and File Transfer of Computer Network

The size of an IP address in IPv6 is _________(a) 32 bits(b) 64 bits(c) 128 bits(d) 265 bitsI have been asked this question in semester exam.The question is from Internet topic in section Wireless LAN’s, Electronic Mail and File Transfer of Computer Network

Which of the following protocols is used in the internet?(a) HTTP(b) DHCP(c) DNS(d) DNS, HTTP and DNSThe question was asked in quiz.My doubt is from Internet topic in division Wireless LAN’s, Electronic Mail and File Transfer of Computer Network

What is WPA?(a) wi-fi protected access(b) wired protected access(c) wired process access(d) wi-fi process accessThis question was posed to me in final exam.My question comes from Wireless LAN in portion Wireless LAN’s, Electronic Mail and File Transfer of Computer Network