Q: For a telephone line, the bandwidth for voice is usually _______ the bandwidth for data. ?
- A: Less than
- B: Greater than
- C: Twice
- D: Equivalent to
Test Selected: nts
|
Asif Ali |
Q: Modulation of an analog signal can be accomplished through changing the ________ of the carrier signal. ?
- A: Amplitude
- B: Frequency
- C: Phase
- D: Any of the above
Test Selected: nts
|
Asif Ali |
Q: The bandwidth of an FM signal requires 10 times the bandwidth of the _______ signal. ?
- A: Bipolar
- B: Sampling
- C: Carrier
- D: Modulating
Test Selected: ministry of defence jobs
|
Shahida Parveen |
Q: When an ASK signal is decomposed, the result is ________. ?
- A: An infinite number of sine waves
- B: Always one sine wave
- C: Always two sine waves
- D: None of the above
Test Selected: nts
|
Asif Ali |
Q: If FCC regulations are followed, ________ potential FM stations are theoretically possible in a given area. ?
- A: 50
- B: 100
- C: 133
- D: 150
Test Selected: nts
|
Kashif Khan |
Q: If FCC regulations are followed, the carrier frequencies of adjacent AM radio stations are ________ apart. ?
- A: 5 KHz
- B: 10 KHz
- C: 200 KHz
- D: 530 KHz
Test Selected: fpsc
|
Raza Khan |
Q: A modulated signal is formed by ________. ?
- A: Changing the carrier wave by the modulating signal
- B: Quantization of the source data
- C: Changing the modulating signal by the carrier wave
- D: Sampling at the Nyquist frequency
Test Selected: nts
|
Latif Anwar |
Q: LAN stands for______________ ?
- A: Limited Area Network
- B: Logical Area Network
- C: Local Area Network
- D: Large Area Network
Test Selected: ministry of defence jobs
|
Aamir Ali |
Q: _______ is the function of DSLAM is ?
- A: Convert digital signals into analog signals
- B: Convert analog signals into digital signals
- C: Amplify digital signals
- D: None of these
Test Selected: nts
|
Imran Ali |
Q: Which network is used to extend a private network across public networks ?
- A: Local area network
- B: Enterprise private network
- C: Storage area network
- D: Virtual private network
Test Selected: nts
|
Imran Ali |
Q: Network congestion occurs when______ ?
- A: When a system terminates
- B: When connection between two nodes terminates
- C: None of the mentioned
- D: In case of traffic overloading
Test Selected: nts
|
Asif Ali |
Q: The number of protocols used by a system, one protocol per layer, is known as ?
- A: Protocol architecture
- B: Protocol suite
- C: Protocol stack
- D: None of these
Test Selected: nts
|
Asif Ali |
Q: Which device is used to forward packets b/w networks by processing the information included in the packet ?
- A: Router
- B: Bridge
- C: Firewall
- D: Hub
Test Selected: fpsc
|
Asif Ali |
Q: Bluetooth is an example of ?
- A: local area network
- B: virtual private network
- C: personal area network
- D: Both A and B
Test Selected: fpsc
|
Sadia Khan |
Q: In computer network nodes are ?
- A: the computer that originates the data
- B: the computer that routes the data
- C: the computer that terminates the data
- D: all of the mentioned
Test Selected: ministry of defence jobs
|
Aamir Aziz |
Q: Which network is built on the top of other networks ?
- A: overlay network
- B: prior network
- C: chief network
- D: prime network
Test Selected: nts
|
Asif Ali |
Q: When a variety of varied PC’s work in a single coherent system to its consumer, then it’s known as ?
- A: computer network
- B: networking system
- C: distributed system
- D: Both A and B
Test Selected: ppsc
|
Sajid Khan |
Q: In which connection, three or more devices share a link ?
- A: Unipoint
- B: Point to point
- C: Multipoint
- D: None of these
Test Selected: nts
|
Salim Ahmad |
Q: A set of rules that governs data communication ?
- A: Standards
- B: RFCs
- C: Protocols
- D: None of these
Test Selected: nts
|
Imran Ali |
Q: What does the passive command provide to dynamic routing protocols ?
- A: Stops an interface from sending or receiving periodic dynamic updates.
- B: Stops an interface from sending periodic dynamic updates but not from receiving updates.
- C: Stops the router from receiving any dynamic updates.
- D: Stops the router from sending any dynamic updates.
Test Selected: nts
|
Aamir Aziz |
Q: Which protocol is used to send a destination network unknown message back to originating hosts
?
- A: TCP
- B: ARP
- C: ICMP
- D: BootP
Test Selected: nts
|
Salim Ahmad |
Q: How often are BPDUs sent from a layer 2 device ?
- A: Never
- B: Every 2 seconds
- C: Every 10 minutes
- D: Every 30 seconds
Test Selected: nts
|
Sadia Khan |
Q: What does the command routerA(config)#line cons 0 allow you to perform next ?
- A: Set the Telnet password.
- B: Shut down the router.
- C: Set your console password.
- D: Disable console connections.
Test Selected: nts
|
Shahid Khan |
Q: Which router command allows you to view the entire contents of all access lists ?
- A: show all access-lists
- B: show access-lists
- C: show ip interface
- D: show interface
Test Selected: ministry of defence jobs
|
Kashif Khan |
Q: Which class of IP address has the most host addresses available by default ?
- A: A
- B: B
- C: C
- D: A and B
Test Selected: nts
|
Latif Anwar |
Q: In a network with dozens of switches, how many root bridges would you have ?
Test Selected: nts
|
Imran Ali |
Q: What PPP protocol provides dynamic addressing, authentication, and multilink ?
- A: NCP
- B: HDLC
- C: LCP
- D: X.25
Test Selected: fpsc
|
Rabia |
Q: What is a stub network ?
- A: A network with more than one exit point.
- B: A network with more than one exit and entry point
- C: A network with only one entry and no exit point.
- D: A network that has only one entry and exit point.
Test Selected: nts
|
Zoha Shah |
Q: You are troubleshooting a connectivity problem in your corporate network and want to isolate the problem. You suspect that a router on the route to an unreachable network is at fault. What IOS user exec command should you issue ?
- A: Router> ping
- B: Router> trace
- C: Router> show ip route
- D: Router> show interface
Test Selected: ppsc
|
Zia Farid |
Q: The configuration register setting of 0x2102 provides what function to a router ?
- A: Tells the router to boot into ROM monitor mode
- B: Provides password recovery
- C: Tells the router to look in NVRAM for the boot sequence
- D: Boots the IOS from a TFTP server
Test Selected: pts
|
Rashid Bhatti |
Q: You telnet to a router and make your necessary changes; now you want to end the Telnet session. What command do you type in ?
- A: close
- B: disable
- C: disconnect
- D: exit
Test Selected: nts
|
Imran Ali |
Q: Which command displays the configuration register setting ?
- A: show ip route
- B: show boot version
- C: show version
- D: show flash
Test Selected: nts
|
Rabia |
Q: The following term is not associted with DSL ?
- A: DSLAM
- B: CO
- C: Splitter
- D: CMTS
Test Selected: fpsc
|
Irshad Habib |
Q: HFC contains ?
- A: Fibre cable
- B: Coaxial cable
- C: Both of the mentioned
- D: None of the mentioned
Test Selected: fpsc
|
Imran Ali |
Q: Among the optical-distribution architectures that is essentially switched ehternet is ?
- A: AON
- B: PON
- C: NON
- D: None of the mentioned
Test Selected: nts
|
Rabia Anam |
Q: StarBand provides ?
- A: FTTH internet access
- B: Cable access
- C: Telephone access
- D: Satellite access
Test Selected: nts
|
Rashid Bhatti |
Q: The IETF standards documents are called ?
- A: RFC
- B: RCF
- C: ID
- D: None of the mentioned
Test Selected: nts
|
Asif Ali |
Q: In the layer hierarchy as the data packet moves from the upper to the lower layers headers are ?
- A: Added
- B: Removed
- C: Rearranged
- D: Modified
Test Selected: nts
|
Aamir Aziz |
Q: The communication channel is shared by all the machines on the network in ?
- A: broadcast network
- B: unicast network
- C: multicast network
- D: none of the mentioned
Test Selected: ppsc
|
Zoha Shah |
Q: Bluetooth is an example of ?
- A: personal area network
- B: local area network
- C: virtual private network
- D: none of the mentioned
Test Selected: fpsc
|
Zia Farid |
Q: The _______ layer changes bits into electromagnetic signals. ?
- A: Physical
- B: Transport
- C: None of the above
- D: Data link
Test Selected: nts
|
Asif Ali |
Q: A _______ connection provides a dedicated link between two devices. ?
- A: Multi-point
- B: Point-to-Point
- C: Primary
- D: Secondary
Test Selected: nts
|
Salim Ahmad |
Q: Which topology requires a multipoint connection ?
- A: Mesh
- B: Star
- C: Ring
- D: Bus
Test Selected: FPSC
|
Asif Ali |
Q: An unauthorized user is a network _______ issue. ?
- A: Performance
- B: Reliability
- C: Security
- D: All of the above
Test Selected: nts
|
Asif Ali |
Q: In _______ transmission, the channel capacity is shared by both communicating devices at all times. ?
- A: Full-duplex
- B: Simplex
- C: Half-duplex
- D: Half-Simplex
Test Selected: nts
|
Rabia |
Q: Frequency of failure and network recovery time after a failure are measures of the
_______ of a network. ?
- A: Performance
- B: Security
- C: Reliability
- D: Feasibility
Test Selected: nts
|
Sadia Khan |
Q: Which organization has authority over interstate and international commerce in the communications field ?
- A: ITU-T
- B: IEEE
- C: ISO
- D: FCC
Test Selected: ppsc
|
Asif Ali |
Q: Which topology requires a central controller or hub ?
- A: Star
- B: Mesh
- C: Bus
- D: Ring
Test Selected: nts
|
Aamir Aziz |
Q: In a network with 25 computers, which topology would require the most
extensive cabling ?
- A: Star
- B: Mesh
- C: Bus
- D: None of these
Test Selected: nts
|
Imran Ali |
Q: Communication between a computer and a keyboard involves ______________
transmission ?
- A: Full-duplex
- B: Half-duplex
- C: Simplex
- D: None of these
Test Selected: nts
|
Zoha Shah |
Q: In a _______ connection, more than two devices can share a single link. ?
- A: Point-to-point
- B: Primary
- C: Multi-point
- D: Secondary
Test Selected: nts
|
Asif Ali |
Q: -------- is the technology that connects the machines and people within a site in a small area. ?
- A: LAN
- B: MAN
- C: WAN
- D: None of these
Test Selected: nts
|
Zia Arif |
Q: ATM stands for: ?
- A: Automatic taller machine
- B: Automated taller machine
- C: Automatic transfer machine
- D: Automated transfer machine
Test Selected: fpsc
|
Aamir Khan |
Q: The first operational computer network in the world was the ------- for the United States Department of Defense ?
- A: Arpanet
- B: Ernet
- C: Skynet
- D: Darpanet
Test Selected: wapda nts
|
Asif Ali |
Q: A computer network permits sharing of ?
- A: Resources
- B: Information
- C: Both a & b
- D: None of these
Test Selected: wapda nts
|
Asif Ali |