In a LAN network which one of the following allows users to share computer programs and data?
Answer: A
Correct answer: File server
A file server holds programs and data centrally so that every user on the LAN can reach the same copy. A print server shares a printer and a communication server shares a link, neither of which is about sharing programs and data.
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What is the advantage of LAN?
Answer: D
Correct answer: Share peripherals
A LAN lets several machines use one printer or one file store. Backing up and reaching the web are possible without a local network, so neither is what the LAN itself provides.
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What is the Unauthorised access of information from a wireless device through a bluetooth connection called ?
Answer: B
Correct answer: bluesnarfing
Bluesnarfing is the unauthorised retrieval of data - contacts, messages, files - from a device over Bluetooth. It is distinguished from bluejacking, which only sends an unsolicited message and takes nothing.
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What type of RJ45 UTP cable do you use to connect a PC's COM port to a router or switch console port?
Answer: C
Correct answer: Rolled
A rolled, or rollover, cable reverses the order of all eight wires and is used to reach a router or switch console port from a PC's serial port. It carries no Ethernet signalling at all, which is why neither straight-through nor crossover will do.
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Internet bandwidth is normally measured in ________.
Answer: D
Correct answer: bits per second
Bandwidth expresses how much data a link carries in unit time, quoted in bits per second and its multiples. Note the unit is bits, not bytes, which is why a 8 Mbps connection downloads at roughly 1 megabyte per second.
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Which of the following is not a type of page margin?
Answer: B
Correct answer: Center
A page has four margins: top, bottom, left and right. There is no centre margin; centring is an alignment of text within those margins.
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Which one among the following is not an application layer protocol used in internet?
Answer: C
Correct answer: resource reservation protocol
Remote procedure call and internet relay chat both run at the application layer. RSVP reserves bandwidth along a path, which is a network-layer function performed by the routers rather than by an application.
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Before buying which package can be downloaded through internet for testing purpose?
Answer: B
Correct answer: Beta software
Beta software is a pre-release version issued so that users can try it and report faults before the final release. Shareware is a finished product distributed on trust, and a pirated copy is an illegal one.
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Which port number does FTP use by default for its control connection ?
Answer: A
Correct answer: 21
FTP uses port 21 to carry commands and port 20 for data in active mode. Port 23 belongs to Telnet, 25 to SMTP and 110 to POP3.
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From the options given which one acts as a doorway to the rest of the website pages?
Answer: A
Correct answer: Home page
The home page is the site's front door: it is what a visitor reaches by default and it carries the links to everything else. A URL is an address and a browser is the program that fetches it.
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