Paging System in data communication uses ________ waves.

• A) Micro waves
• B) Radio waves
• C) Ultraviolet waves
• D) Infrared waves

FF:FF:FF:FF:FF:FF is a ____________________ link layer address.

• A) Subnet mask
• B) Unicast
• C) Multicast
• D) Broadcast

Data Link layer provides services to the __________ layer.

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

Connection setup means using ______channels in circuit switched network.

• A) Communication
• B) Authenticated
• C) Dedicated
• D) Satellite

A virtual-circuit network is a cross between a ______________ network and a datagram network.

• A) Packet switched
• B) Message switched
• C) Both message and packet switched network
• D) Circuit switched

Entire band in United States is regulated by______________ authorities.

• A) ITU
• B) NASA
• C) FCC
• D) ANSI

The material used for conduction in twisted pair cable is ______.

• A) Copper
• B) Aluminum
• C) Silver
• D) Gold

Coaxial cable carries signals of higher frequency ranges than those in _____________ cable.

• A) Twisted pair
• B) Television
• C) Fiber optic
• D) T Lines

Switching in Datagram is normally done at______.

• A) Session Layer
• B) Transport Layer
• C) Physical Layer
• D) Network Layer

___________ and ______are the two types of addressing in virtual circuit approach.

• A) Private, Public
• B) Variable, Dynamic
• C) Dependent, Independent
• D) Local, Global

In a circuit switched network, the link between the switches is segregated into ____ number of channels.

• A) 2n
• B) n
• C) n2
• D) n-1

In circuit switching, when two end devices “A” and “B” connects with each other they send ___________ request.

• A) Switching
• B) Setup
• C) Inquiry
• D) Acceptance

Cellular telephone uses __________waves for communication.

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

In optical fiber cable, the ratio of the diameter of their core to the diameter of their cladding, both expressed in _____________.

• A) Centimeters
• B) Millimeters
• C) Meters
• D) Micrometers

Frequency division multiplexing (FDM) or ______ are the resources that a station reserves before starting communication.

• A) ADM (Amplitude Division Multiplexing)
• B) SDM (Space Division Multiplexing)
• C) TDM (Time Division Multiplexing)
• D) All of the given

In_______________ medium, signals are normally broadcast through free space and thus are available to anyone who has a device capable of receiving them.

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

_____ has less electromagnetic interference as compared to other guided medium.

• A) Fiber Optic
• B) Coaxial
• C) Unshielded Twisted Pair
• D) Shielded Twisted Pair

Current technology supports ___________modes for propagation of light.

• A) Four
• B) Two
• C) Three
• D) Five

_______________category of coaxial cable is used for thick Ethernet.

• A) RG-47
• B) RG-59
• C) RG-58
• D) RG-11

In single crossbar switch, only __________ row(s) or column(s) is/are active at a time while others are not active.

• A) Three
• B) Four
• C) Two
• D) One