CS610 MCQs and Subjective by Tariq Hanif

1. ATM assigns each VC a _____________ identifier that is divided two parts to produce a hierarchy.

21-bit 22-bit 23-bit 24-bit (pg 67)

2. In ---------, network occupies larger areas like cities & countries.

LAN WAN (pg 4) MAN CAN 3. ________ is the scheme, which is designed to help in detecting transmission errors, sends one extra bit of information with each character. Parity checking (Pg. 18) Checksums CRC LRC

4. The Fast Ethernet hardware operates at a rate of --------

10 Mbps 100 Mbps (pg 27) 1000 Mbps 1 Gbps

5. When an application--------------- data, it makes a copy of the data available to all other
6. Formally named __________ informally known as the thin wire Ethernet or Thin net. 10 Base 2

10 Base 5 10 Base T 100 Base T

7. NICs contain analogue circuitry and _______ that allows the NIC to operate independent of the CPU.

Microprocessor

8. By size there are.......................classifications of networks.

2 (pg 4)

Q9. In which type of topology computers are connected to a central device?

Ring Mesh Bus Star (pg 5)

10. ---------- was especially most concerned about the lack of highly powered computers. ARPA

IEEE EIA Goverment

11. IEEE LLC/SNAP header is __________which is used to specify the type of data.

8 octets (Pg. 112) 10 octets 12 bytes 16 bits

12. An interface for Thin Ethernet must have ____________ connector and must generate

RJ-45, 10 Base 5 BNC, 10 Base 2

13. ___________ technology can support both LAN and WAN connections.

Frame relay a

Ethernet

SMDS

ATM (Pg. 66)

14. ________ is used for ordinary data.
15. A network which is based on packets uses a computer which may have _________, memory and__________ for switching.

Administration Rights, Algorithm

Interface, Program Input, Output

16. No error detection scheme is perfect because transmission errors can affect _________.

Data

17. In direct point to point communication adding the Nth computer requires_________ new connections.

N(N - 1) N2 N - 1 (N2 –N)/2

18. The next hop to which a packet is sent depends only on__________.

Packet’s destination Packet’s original source Path the packet has taken Routed Protocol (pg 93)

19. _________ in which delay among packets can vary.
20. A typical port on an ATM switch operates at __________ or higher.2

OC-2 speed (155Mbps) OC-3 speed (100Mbps) OC-3 speed (155Mbps) (pg 72) OC-3 speed (155Gbps)

1. ATM assigns each VC a _____________ identifier that is divided two parts to produce a hierarchy.

21-bit 22-bit 23-bit 24-bit (pg 67)

2. Hardware that calculates a CRC uses two simple components.

AND unit with XOR unit Shift register with XOR unit (pg 20)