COMPUTER NETWORKING QUIZ

Four routers have to be interconnected in a point-to-point Network. Each pair of root us may connected by a high-speed line, a medium speed line or a low speed line. Find the total number of topologies.

48

ARP.EXE

12

81

729

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FDDI is a

None of these

ring network

star network

mesh network

bus based network

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A computer that handles resource sharing and network management in a local area network. Select the best fit for answer:

Virtual Private Network

Network Server

Three

OSI

Network operating system

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Which statements are true regarding ICMP packets?1. ICMP guarantees datagram delivery.2. ICMP can provide hosts with information about network problems.3. ICMP is encapsulated within IP datagrams.4. ICMP is encapsulated within UDP datagrams.

2 and 3

All of these

1 and 4

1 only

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In geosynchronous orbit, satellite

remains in a fixed position so that as earth rotates, it can fully cover the earth

moves faster than the earth's rotation so that it can cover larger portion of earth.

moves simultaneously

remains in a fixed position related to points on earth

None of these

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Bulletin board system

converts digital signals to analog signals

None of these

is a modem capable of accepting commands

is a public access message system

converts analog signals to digital signals

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Which of the following would be good reasons to run NAT?1. You need to connect to the Internet and your hosts don't have globally unique IP addresses.2. You change to a new ISP that requires you to renumber your network.3. You don't want any hosts connecting to the Internet.4. You require two intranets with duplicate addresses to merge.

3 only

1, 2 and 4

2 and 4

All of these

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HDLC (High-level Data Link Control) is

a very common bit-oriented data link protocol issued by ISO.

a method of determining which device has access to the transmission medium at any time

a method access control technique for multiple-access transmission media

network access standard for connecting stations to a circuit-switched network

None of these

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Devices interconnected by the LAN should include

None of these

Computers and terminals

mass storage device, printers and plotters

All of these

bridges and gateways

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How many Character per sec(7bits + 1parity) can be transmitted over a 2400 bps line if the transfer is synchronous (1 "Start" and 1 "stop" bit)?

300

275

250

240

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