Computer Networks quiz 3

1.Which of the following statements is/are NOT True?

Select one:
a. Queuing Delay in case of Switches is ZERO.  {correct}
b. If the queue is empty and no other packet is currently being transmitted then our packets queuing delay will be ZERO  
c. Queuing Delay in case of Hubs is ZERO.


2.To which OSI Layer or Layers does the Ethernet belong?

Network Layer

Data Link Layer

Transport Layer

Physical Layer

Network Layer

Session Layer

Application Layer

Select one:
a.
Data Link Layer and Physical Layer{correct}

b. Network Layer
c. Data Link Layer
d. Physical Layer


3.What is the data transfer rate of a GbE Card?    

Select one:
a. 1 Gbps{correct}
b. 100 Mbps
c. 1 Tbps
d. 10 Mbps

4.Latest version of HTTP is 1.1

Select one:
True
False{correct}


5.In the case study of Gigabit Ethernet which of the following factor contributes more in Delay?

Select one:
a. Queuing Delay{correct}
b. Propagation Delay
c. Transmission Time

6. DHCP Solicitation and DHCP Advertise Messages are meant to do the same thing but use different message formats and different points of origin.

Select one:
True
False{correct}

7.Telnet protocol does not benefit from cache mechanism.

Select one:
True{correct}
False

8.ARP and RARP are different variations of the same protocol.

Select one:
True
False{correct}

9. Reverse DNS Look-up is required for mapping an IP Address to to a TSAP.

Select one:
True
False{correct}

10.In the case study of Gigabit Ethernet if we increase the size of data for each node from 1472 Bytes to 5120 Bytes what would be its effect on utilization of the Network?

Select one:
a. Increase in Utilization  {correct}
b. Decrease in utilization
c. No change in Utilization level

Computer Networks quiz 2

1.Which provides a better way to represent exchange of messages / data units between two given network nodes runningthe same Network Protocol?

Select one:
a. Sequence Diagram
b. Timing and Sequence Diagram{correct}
c. Graph
d. Timing Diagram

2.Which of the following enables bi-directional exchanges between different types of networks or the networks using different sets of protocols?

Select one:
a. A Gateway {correct}
b. A Network Interface Controller chip
c. A Web-Browser
d. A Web-Server

3.A Stateless protocol:

Select one:
a. Has no state
b. Does not record / store state information corresponding to any transaction{correct}


4.What is inside a Network Adapter?

Select one:
a. Transmitter and Receiver
b. Scrambler and Descrambler
c. Multiplexer, Demultiplexer, Transmitter, Receiver, Scrambler, Descrambler and a few more elements.{correct}
d. Multiplexer and Demultiplexer

5.Analyze the TCP using Wireshark and answer that- The bytes of data being transferred in each connection are numbered by TCP. The numbering starts with a __________________.

Select one:
a. Randomly Generated Number{correct}
b. Binary number starting with 0
c. Binary number starting with 1
d. Octal Number

6.Which of the following RFCs defines the format and syntax of the latest HTTP standard?

Select one:
a. RFC 2616
b. RFC 7230 {correct}
c. RFC 2460
d. RFC 7320

7.The term Edge of the Network in the sense of the Internet refers to:

Select one:
a. high capacity nodes that interconnect to one-another as well as two or more interior nodes and multiple exterior user facing nodes
b. highest capacity interior nodes interconnecting to the end user networks
c. a local area network
d. lowest capacity exterior nodes interconnecting to the end user networks{correct}

8.Analyze the TCP using Wireshark and answer that- which of the following service uses TCP?

Select one:
a. HTTP & FTP {correct}
b. DHCP & ARP
c. DHCP, TFTP & ARP
d. DHCP, TFTP & HTTP

9.A Network Protocol is considered incomplete when:

Select one:
a. It fails (breaks) at times
b. A given state is does not have a defined stimulus to be reached from another connect state
c. It does not depict all possible states and transitions required to depict the behavior and desired operation {correct}
d. It underperforms

10.Why is it important to ensure that every defined state is reachable in a State Transition Diagram representing a Network Protocol?

Select all those options which apply!

Select one or more:
a. To ensure that the Network Protocol has all desired and possible states as well as stimuli leading to those states indicated{correct}
b. No defined / possible state has a path leading to it  and a stimulus that could cause a transition from a prior state to a given state{correct}
c. To ensure that the protocol can handle all possible / likely errors{correct}

computer Networks Quiz 1

1.A network protocol may be also seen as a set of relevant commands and responses, with respect to a logical communication between processes at the same level on two communicating nodes.

Select one:

True 

False

2.HTTP over TCP over IP in the TCP/IP Network Architecture is an example of a possible Protocol Stack.

Select one:

True 

False

3.Packet-switching does not require monopolisation of end to end resources like circuit-switching.

Select one:

True 

False

4.The term autonomous node applies to each and every device that qualifies as a valid network node.

Select one:

True 

False

5.If a room has fourteen TTY terminals connected to a Unix(TM) or Linux(TM) computer via serial interfaces / line drivers, then  it is an example of a Computer Network.

Select one:

True

False