According to stats, fewer than _____________ crossbar points can be used at once.

• A) 25%
• B) 100%
• C) 14%
• D) 30%

In virtual Circuit network all packets follow ____________ path.

• A) Individual
• B) Alternative
• C) Centralized
• D) Dedicated

_______________ does not happen until all the data is transferred and all of the resources are freed.

• A) Resource Allocation
• B) Acknowledgement
• C) Switching
• D) Tear Down

In virtual circuit approach when a frame enters a switch and when it leaves a switch its VCI_______________.

• A) Always Changes
• B) Sometimes Remain Same
• C) Remain the Same
• D) Sometimes Changes

In ____________ switching resources are allocated during the entire duration of the connection and these resources are unavailable to other connections.

• A) Packet-switched networks
• B) Circuit Switched Networks
• C) Both circuit and message switch network.
• D) Message switched networks

In datagram network, each data packet contains its _____.

• A) ID
• B) Name
• C) Number
• D) Address

______________are used for multicast communications, such as radio and television.

• A) Light wave
• B) Microwaves
• C) Radio waves
• D) Infrared waves

Some manufacturers provide a special port called the __________ port that allows a wireless keyboard to communicate with a PC.

• A) IrDA
• B) USB
• C) Parallel
• D) Consol

Data Link layer receives services from the ___________ layer.

• A) Physical
• B) Transport
• C) Session
• D) Application

In order to resolve link layer address of the next node, the first generated ARP request is always in _________ mode.

• A) Multiplex
• B) Multicast
• C) Broadcast
• D) Unicast

The size of the packet is determined by the network and _______________.

• A) Switching Type
• B) Instructions
• C) Delays
• D) Governing Protocol

In optical fiber a glass or plastic core is surrounded by a __________.

• A) Insulator
• B) Inner Conductor shield
• C) Outer conductor shield
• D) Cladding

Among the following cables given below, __________cable has the highest cost as compared to others.

• A) UTP
• B) Fiber optical
• C) STP
• D) Coaxial cable

Media Access Control (MAC) and Data Link Control (DLC) constitute _____________ layer.

• A) Physical
• B) Network
• C) Transport
• D) Data link

A switched network consists of a series of interlinked _____ called switches.

• A) Systems
• B) Nodes
• C) Roots
• D) Points

____________ is responsible for governing node to node communication.

• A) Session Layer
• B) Presentation Layer
• C) Application Layer
• D) Data Link layer

DLC in Data Link Layer stands for ____.

• A) Demand Link Coordination
• B) Data Line Code
• C) Divide Line Communication
• D) Data Link Control

A local telephone network use __________ network.

• A) Bit switched
• B) Line switched
• C) Circuit switched
• D) Packet switched

_______________ is the scope of VCI variable in virtual circuit approach.

• A) Global
• B) Private
• C) Variable
• D) Local

Virtual-Circuit Networks and datagram networks are the sub categories of ________________.

• A) Message switched networks
• B) Packet-switched networks
• C) Both circuit and message switched networks
• D) Circuit Switched Networks