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4

Which is the port used by POP3?

A. 69

B. 110

C. 143

D. 443

Correct Answer :

B. 110


Related Questions

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4

In flags message attribute, which of the following flag indicates that message has been
completed?

A. \Deleted

B. \Recent

C. \Flagged

D. \Draft

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4

What is the default port for Telnet?

A. 23

B. 21

C. 25

D. 80

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4

Which of the following protocols are considered unreliable or connectionless?

A. UDP

B. TCP

C. FTP

D. TFTP

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4

Internet Architecture Board (IAB) governs which of the following bodies?

A. Internet Assigned Number Authority (IANA)

B. Internet Research Task Force (IRTF)

C. Internet Engineering Task Force (IETF)

D. All of the above

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4

A network's Internet connection uses a 128-Kbps Basic Rate Interface (BRI). What type of connection is this?

A. DSL

B. Cable modem

C. ISDN

D. T1

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4

Which piece of equipment operates at both the data-link and network layers?

A. Hub

B. Bridge

C. Brouter

D. Router

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A financial institution that issues the card to the purchaser is ________.

A. Merchant

B. Issuer

C. Acquirer payment gateway

D. Cardholder

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4

In the IP address 129.2.8.9, what does 129.2 specify?

A. Protocol address

B. Router address

C. Host number

D. Network number

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4

What is the maximum length of thick Ethernet cable before a signal booster is needed?

A. 500 feet

B. 500 meters

C. 1000 feet

D. 2 miles

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4

Which of these is an example for unguided transmission?

A. coaxial cable

B. optical fibers

C. wireless

D. twisted pairs

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4

Pure ALOHA has a maximum throughput of -----------

A. 16.4 %

B. 18.4 %

C. 7.4 %

D. 1 %

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4

FDDI operates on 100 Mbps.

A. True.

B. False.

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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

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

Which of the following protocols use a topology table to install routes into the IP routing
table?

A. Open Shortest Path First (OSPF)

B. Enhanced Interior Gateway Routing Protocol (EIGRP)

C. Exterior Gateway Protocol (EGP)

D. Static routing protocols

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4

What are the subnet mask in dotted decimal notation for /20 networks?

A. 255.255.252.0

B. 255.255.255.0

C. 255.255.254.0

D. 255.255.240.0

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4

Which of the following is the port used by SMTP?

A. 21

B. 23

C. 25

D. 80

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4

Which of the following versions will replace IPv4 Internet layer?

A. IPv4.1

B. IPv5.1

C. IPv6

D. IPv5.2

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4

The generic domain name for air transport industry is ________.

A. biz

B. air

C. aero

D. fly

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4

The special address 'THIS HOST' is referred to as

A. 0.0.0.0

B. 0.0.14.98

C. 127.0.0.127

D. 255.255.255.255

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4

Which of the following can be used to transfer files from a Unix server?

A. FTP

B. Telnet

C. IPX

D. Netstat

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4

127.0.0.1 address is reserved for internal loopback functions.

A. True.

B. False.

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4

Which layer of the OSI model does a switch operate in?

A. Physical

B. Data-link

C. Network

D. Transport

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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

Thinnet coaxial cable uses what type of connector?

A. RJ-45

B. AUI

C. MSAU

D. BNC

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4

BGP is …………………………………….routing protocol used to ………………………….routing table.

A. intrautonomous system, update

B. Interautonomous system, update

C. Interautonomous system, create

D. intrautonomous system, create

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4

ARP is defined in RFC _____ and it is a current internet standard, ________

A. RFC-37, STD 903

B. RFC-903, STD 37

C. RFC 826; STD 37

D. RFC 37; STD 826

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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

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

A. True.

B. False.

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4

ADSL uses high-speed Internet service phone lines

A. True.

B. False.