Free UGC NET Paper 2 CS Mock Test 10 – Network Models, Topologies & Devices (Unit 9)

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Q1. Choose the correct order for the following sequence in the context of OSI layers (from bottom to top)
A. Transforming the datagrams into frame for transmission
B. Transmission of bits over communication channel
C. Handling user interface
D. Control and monitoring of subnet
E. Transmission of data using either connection-oriented or connection-less protocol
Choose the correct answer from the options given below:

AA B C D E BB C D E A CB A D E C DA B D E C

Q2. Which topology requires a central controller or a hub?

ABus BStar CMesh DRing

Q3. Arrange the following in the correct order in the context of OSI model (from bottom to top):
A. Network layer
B. Physical layer
C. Presentation layer
D. Data link layer
E. Application layer
Choose the correct answer from the options given below:

AD, A, C, B, E BA, C, E, B, D CB, D, A, C, E DC, A, B, E, D

Q4. Choose the correct statements from the following
A. In connection-oriented service, the destination address is to be specified only during the setup.
B. Packet sequencing is not guaranteed in connection-oriented service.
C. Flooding is a method in which every incoming packet is sent out on every outgoing line except the one by which it arrived.
D. The presentation layer performs detection and recovery from errors in the transmitted data.
Choose the correct answer from the options given below:

AA, B & C only BB, C & D only CA & C only DA, C & D only

Q5. Arrange the following in the order of OSI layers (bottom to top):
I. Transforming the raw bits into frames for transmission
II. Transmission of raw bits over the communication channel
III. Handling user interfaces
IV. Control and monitoring of the subnet
V. Transmitting data, connection-oriented or connectionless using datagrams
Choose the correct answer from the options given below:

AI-II-III-IV-V BII-III-IV-V-I CII-I-IV-V-III DI-II-IV-V-III

Q6. Which layer divides each message into packets at the source and reassembles them at the destination?

ANetwork layer BTransport layer CData link layer DPhysical layer

Q7.

Rearrange the following sequence in the context of OSI Layers:

I. Transforming the raw bits in the form of frame for transmission

II. Transmission of raw bits over communication channel

III. Handling user interfaces

IV. Control and monitoring of subnet

V. Transmission data through connection oriented or connection less using datagrams

AI-II-III-IV-V BII-III-IV-V-I CII-I-IV-V-III DI-II-IV-V-III

Q8.

A fully connected network topology is a topology in which there is a direct link between all pairs of nodes. Given a fully connected n network with nodes, the number of direct links n as a function of can be expressed as

An(n + 1)/2 B(n + 1)/2 Cn/2 Dn(n − 1)/2

Q9.

Which of the following statements is/are true with regard to various layers in the Internet stack? P: At the link layer, a packet of transmitted information is called a frame. Q: At the network layer, a packet of transmitted information is called a segment.

AP only BQ only CP and Q DNeither P nor Q

Q10.

The ability to inject packets into the Internet with a false source address is known as

AMan-in-the-middle attack BIP phishing CIP sniffing DIP spoofing

Q11.

Consider ISO-OSI network architecture reference model. Session layer of this model offers dialog control, token management and .________ as services.

ASynchronization BAsynchronization CFlow Control DErrors

Next: Mock 11 – Wireless, Mobile & Network Security (Part 1) →

Mock 10 – Network Models, Topologies & Devices