_____ and _____ cannot be used in a filename.(a) /, NULL(b) $,^(c) ., %(d) NULL, $This question was addressed to me during an interview for a job.This interesting question is from Categories of Files topic in section The File System of Unix

_____ and _____ cannot be used in a filename.(a) /, NULL(b) $,^(c) .,

1.	_____ and _____ cannot be used in a filename.(a) /, NULL(b) $,^(c) ., %(d) NULL, $This question was addressed to me during an interview for a job.This interesting question is from Categories of Files topic in section The File System of Unix
Answer» Right choice is (a) /, NULL The best I can explain: UNIX imposes no rules in framing FILENAME extensions but there are some SPECIAL characters which cannot be used while naming a file. / and NULL are the characters which cannot be used in a filename.

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