What do you mean by RAS?
Answer: A
Correct answer: Remote access service
RAS is Remote Access Service - the Windows facility that lets a machine dial in or connect over a network and use resources as though it were attached locally.
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In networking, what does IP address stand for and what does it identify?
Answer: C
Correct answer: Internet Protocol address, identifying a device on a network
An IP address - Internet Protocol address - identifies a device on a network so that data can be routed to it. Two versions are in use. IPv4 uses 32 bits, written as four numbers from 0 to 255 such as 192.168.1.1, giving about 4.3 billion addresses - which have run out. IPv6 uses 128 bits written in hexadecimal groups, giving a number large enough that exhaustion is not a concern. Addresses divide into public ones, unique across the internet, and private ones such as the 192.168 and 10.x ranges, which are reused inside local networks and translated at the boundary by NAT - the main reason IPv4 has lasted so long. They may be static, fixed by configuration, or dynamic, assigned by a DHCP server on joining. A MAC address is different: it identifies the hardware interface itself and does not change with the network.
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When you want to view different parts of a document without moving the insertion point.
Answer: C
Correct answer: Use the vertical and horizontal scroll bars
Scrolling changes what is shown without moving the insertion point, so typing would still occur where the cursor was left. Using the keyboard or the page buttons moves the cursor as well.
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Bandwidth refers to
Answer: D
Correct answer: the amount of information a communications medium can transmit
Bandwidth measures capacity - how much can be carried per unit of time. It is a property of the medium, not of its cost or of what a network stores.
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Which of the following is considered a broad band communication channel?
Answer: D
Correct answer: All of these
Broadband means a channel of wide bandwidth, and coaxial cable, microwave links and optical fibre all qualify - each carries far more than a single voice channel.
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What are the requirements of wide area networks?
Answer: D
Correct answer: All of the above
A wide area network needs compatible equipment at each site, communication links of adequate bandwidth to span the distance, and processing capable of handling the traffic.
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When computers are connected in LAN then
Answer: A
Correct answer: Computers can share information and share peripheral equipment
A LAN allows files and devices to be shared. It does not make any individual machine faster, and reaching the internet requires a further connection beyond the local network.
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