COMP4322-LEQ1

Commonly which one is the bottleneck (highest delay)?

• dproc

• dqueue

• dtrans

• dprop

In queue delay what is the reason of exponential increase in traffic?

• Due to the limited processing power of network devices

• Because of the physical distance between sender and receiver

• When the packet arrival rate exceeds the departure rate

• As a result of errors and collisions in the network

Given the formula of "traffic intesity", what value of L.a / R correctly defines the scenario of medium traffic, medium delay

• 1

• 0

• -1

• 0.6

In a traceroute (finding network hops) there could be (sometimes) certain jumps in delay. What is the common major reason for this.

• Network congestion

• Trans-oceanic link

• Small packet size

• Wifi

Is it possible to use higher layer protocol (say HTTP) without any lower layer protocol (say TCP)?

• No

• Yes

• Depends

• Maybe

Why does each layer in the TCP/IP stack need to add its own header to the data?

• To ensure secure transmission of data

• To add redundancy and error correction capabilities

• To provide addressing and control information specific to that layer

• To increase the overall speed and efficiency of the network

Each router in a network maintains its own routing table

• True

• False

1. Which statement accurately describes multiplexing techniques, such as TDM and FDM?

• TDM and FDM are used to combine multiple signals onto a single communication channel

• TDM is used for analog signals, while FDM is used for digital signals

• TDM and FDM are interchangeable terms for the same multiplexing technique

• TDM and FDM are only applicable in wired communication systems

In which scenarios is the Client-Server communication model generally considered better than Peer-to-Peer (P2P) communication? (Select multiple)

• When centralized control and management of resources is required

• When there is a need for efficient scalability and handling of multiple client requests

• When a fully decentralized network architecture is preferred

• When direct communication between clients without intermediaries is essential

• When the network environment is highly dynamic and constantly changing

In which scenarios is TCP generally considered better than UDP? (Select multiple)

• When reliable data delivery and error correction are crucial

• When low latency and minimal overhead are top priorities

• When broadcasting or multicasting data to multiple recipients

• When the order of data delivery needs to be preserved

• When real-time streaming or interactive communication is required