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4

Which of these is a feature of hubs?

A. Hubs amplify the incoming signal.

B. Hubs understand frames, packets or headers

C. All lines coming into a Hub must operate at a same speed.

D. all of these

Correct Answer :

C. All lines coming into a Hub must operate at a same speed.


Related Questions

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4

How many 64-Kbps channels are used on an ISDN BRI?

A. 1

B. 2

C. 3

D. 4

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4

Which of the following protocols is described in RFC 793?

A. Address Resolution Protocol (ARP)

B. Transmission Control Protocol (TCP)

C. Bootstrap Protocol (BOOTP)

D. User Datagram Protocol (UDP)

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4

What can be used in the place of DNS to resolve host names to IP addresses?

A. WINS

B. LMHosts

C. Hosts

D. DHCP

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4

What is attenuation?

A. cable noise

B. cable shortage

C. loss of signal strength

D. unwanted signals on the network

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4

Identify the topology and network type that uses a central hub with cables connected to workstations.

A. Physical star topology, Ethernet

B. Physical bus topology, Ethernet

C. Physical ring topology, token ring

D. Physical ring topology, Ethernet

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4

Which of the following algorithms are meant for establishing the paths through the network?

A. Unicast

B. Broadcast

C. Multicast

D. Any cast

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4

Which directory service is used in Windows 2000 Server?

A. Active Directory

B. SAM

C. NDS

D. Bindery

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4

What is the default subnet mask for a class B network?

A. 255.0.0.0

B. 255.255.0.0

C. 255.255.255.0

D. 255.255.192.0

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4

80 is the well-known port number for the HTTP service.

A. True.

B. False.

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4

You are browsing www.microsoft.com on a machine named host.contoso.org.. What is the order of domain name resolution?

A. Contoso.com, contoso.org, microsoft.com, com

B. Contoso.com, org, microsoft.org, org

C. Contoso.org, org, root [.], com, microsoft.com

D. Microsoft.com, com, org, contoso.org

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4

802.5 project standard defines Token Ring.

A. True.

B. False

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4

Following are the advantages of tree topology
i) Point-to-point wiring for individual segments.
ii) Supported by several hardware and software venders.
iii) Easy to install and wire

A. i) only

B. i) and ii) only

C. iii) only

D. i) ,ii) and iii)

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4

Twisted-pair cable uses what type of connector?

A. RJ-11

B. XT-20

C. RJ-45

D. RJ-50

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4

Which of the following protocols is described in RFC 793?

A. Address Resolution Protocol (ARP)

B. Transmission Control Protocol (TCP)

C. Bootstrap Protocol (BOOTP)

D. User Datagram Protocol (UDP)

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4

TCP protocol is responsible for logical addressing and delivery of packets.

A. True.

B. False.

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4

Which of the following is currently a de facto standard, commonly used for point-to-point
serial connections running TCP/IP?

A. Fiber Distributed Data Interface (FDDI)

B. Serial Line IP (SLIP)

C. Point-to-Point Protocol (PPP)

D. IEEE 802.3

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4

The Hamming Distance for the codes generated using either even or odd parity will be------------------

A. 2

B. 4

C. 1

D. 0

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4

Which of the following protocol is used by Integrated Services for signaling of the
reservation messages?

A. Link state protocols

B. Distance Vector Multicast Routing Protocol (DVMRP)

C. Resource Reservation Protocol (RSVP)

D. Static routing protocols

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4

Which of the following fields holds the packets of several protocols?

A. NLPID field

B. Pad field

C. UI (0x03) field

D. Q.922 field

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4

DSL stands for ------------------------

A. data subscriber lines

B. dual subscriber lines

C. delay subscriber lines

D. digital subscriber lines

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4

What is 10baseT?

A. specification for twisted-pair cable

B. specification for cable terminators

C. 10 megawatt transceiver

D. 10 Mhz analog transfers

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4

A router receives an IP packet with source IP address 130.45.3.3 and destination IP address 202.23.4.16. The router cannot find the destination IP address in its routing table. Which ICMP message should be sent?

A. Time stamp request

B. Router solicitation

C. Destination Unreachable

D. Parameter problem on a datagram

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4

FDDI operates on 100 Mbps.

A. True.

B. False.

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4

A node, which is more powerful, and can handle local information processing or graphics processing is called a------------------.

A. Workstation

B. Server

C. Network Operating System

D. Peer system

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4

Data Transmission is not a layer in the OSI model

A. True.

B. False.

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4

What is the maximum size of IP header in the UDP Datagram format?

A. 40 bytes

B. 50 bytes

C. 60 bytes

D. 70 bytes

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4

Which of the following protocols were designed for terminal emulation to connect dissimilar systems?

A. Domain Name System

B. FTP

C. Telnet

D. Control Message Protocol

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4

___________ is based on resources that are present within the Diffserv region.

A. Admission control

B. Packet scheduler

C. Packet classifier

D. Packet control

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4

Which of the following can provide a backbone network of 600 meters in length without using repeaters?

A. 10BaseT

B. 100BaseT

C. 10Base5

D. 100BaseFX

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4

What is the default port for Telnet?

A. 23

B. 21

C. 25

D. 80