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4

E-mail is an example of ………………………… mode of communication where one party can send a note to another person and the recipient need not be online to receive the e-mail.

A. asynchronous

B. synchronous

C. full duplex

D. either A or B

Correct Answer :

A. asynchronous


Related Questions

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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

________allows receiver to inform sender about the successful receiving of all the
segments.

A. SACK-permitted Option

B. Window scale option

C. Selective Acknowledgment (SACK)

D. Maximum segment size option

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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

Which of the following are not the standard representations defined by Telnet protocol?

A. IP and AO

B. YTA and WAY

C. EC and EL

D. SYNCH

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4

Using a class B address maximum of …………………networks can be defined with up to……………………..hosts per networks.

A. 2,097,152-------------254

B. 16,384-----------------65,536

C. 16,384---------------65,534

D. 126--------------------16,777,214

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4

Destination physical address in ARP request is a ………………………….address.

A. Unicast

B. Broadcast

C. Multicast

D. Anycast

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4

________is a multicast extension to OSPF Version 2.

A. Multicast Source Discovery Protocol (MSDP)

B. Distance Vector Multicast Routing Protocol (DVMRP)

C. Multicast OSPF (MOSPF)

D. Internet Group Management Protocol (IGMP)

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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 of the following was initially designed as a video and audio compression standard?

A. MPEG-1

B. MPEG-2

C. MPEG-4

D. MPEG-3

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4

What is the maximum length of twisted-pair cable before a signal booster is needed? Select all that apply.

A. 25 meters

B. 100 meters

C. 328 feet

D. 1000 feet

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4

Which of the following transmission media suffers more from transmission impairment?

A. coaxial cable

B. Optical fiber

C. twisted pair

D. wave guides

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4

The network interface layer specifies how to organize data into………………………..and Internet layer specifies the format of …………………….. Sent across an Internet.

A. Bits, message.

B. frame,packet.

C. packet, messge.

D. datagram, packet.

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4

Strings enclosed in _______ quotation marks indicate single tokens.

A. Alphanumeric

B. Morse code

C. ASCII

D. Binary

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4

What is the address identified when socket is available at each end of TCP?

A. "<TCP, IP address, socket number>."

B. "<TCP, Host address, port address>."

C. "<TCP, IP address, port number>."

D. "<TCP, Network address, socket address>."

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4

________acts as source and destination for IP traffic.

A. Interface

B. Node

C. Host

D. Router

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4

Which is the port used by POP3?

A. 69

B. 110

C. 143

D. 443

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4

In an authentication using symmetric keys, if 10 people need to communicate, we need _______ keys.

A. 90

B. 10

C. 20

D. 45

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4

You've taken your Windows 2000 laptop to a client's network and plugged it in. Your computer is configured for an IP network over 100BaseT using DHCP. You can't connect, even though the client says that DHCP is working on his 100BaseT network. What should

A. Use Ipconfig /release to release the old DHCP address.

B. Use Winipcfg and click Release to release the old DHCP address.

C. Use Ifconfig to initialize the NIC.

D. Use Tracert to determine the problem.

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4

Which of the following protocol was developed to overcome limitations of Routing
Information Protocol (RIP)?

A. Border Gateway Protocol (BGP)

B. Exterior Gateway Protocol (EGP)

C. Enhanced Interior Gateway Routing Protocol (EIGRP)

D. Open Shortest Path First (OSPF)

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4

Class C network address class supports 65,534 hosts.

A. True.

B. False.

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4

____________ was developed to support aggregation and summarization of routing
information.

A. Static Routing protocol

B. Enhanced Interior Gateway Routing Protocol (EIGRP)

C. Routing Information Protocol (RIP)

D. Border Gateway Protocol (BGP)

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4

Which of the following pieces of equipment will receive a packet from one port and forward that packet out the one port to which the destination computer is connected?

A. Hub

B. MAU

C. Switch

D. TDR

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4

ICMP messages require ………………. levels of encapsulation

A. One

B. Two

C. Three

D. Four

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4

25 is used by SMTP

A. True.

B. False.

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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

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

You've taken your Windows 2000 laptop to a client's network and plugged it in. Your computer is configured for an IP network over 100BaseT using DHCP. You can't connect, even though the client says that DHCP is working on his 100BaseT network. What should

A. Use Ipconfig /release to release the old DHCP address.

B. Use Winipcfg and click Release to release the old DHCP address.

C. Use Ifconfig to initialize the NIC.

D. Use Tracert to determine the problem.

What is the correct answer?

4

What is the IEEE specification for Ethernet?

A. 802.1

B. 802.2

C. 802.3

D. 802.4

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4

Select the class C IP address from the following:

A. 122.10.8.25

B. 170.5.88.2

C. 191.5.26.1

D. 207.67.112.55

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4

To communicate across a TCP/IP network, you must have a DNS server and DNS clients installed.

A. True.

B. False.