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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

Correct Answer :

D. 255.255.240.0


Related Questions

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4

You wish to install a 100BaseT network. What type of cabling will you use?

A. CAT 3 UTP

B. CAT 5 UTP

C. Thinnet

D. Fiber optic

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4

Class C network address class supports 65,534 hosts.

A. True.

B. False.

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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

Which class of IP addressing was not brought in much use?

A. Class A addresses

B. Class D addresses

C. Class B addresses

D. Class C addresses

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4

A time exceeded message is generated if ………………………………………………….

A. The round trip time between hosts is close to zero.

B. The Time-to Live field has a zero value.

C. Fragments of a message do not arrive within a set time

D. both b & c

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4

In TCP segment format _______indicates start of data.

A. RST

B. ACK

C. URG

D. Data Offset

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4

A modem is a card within a PC that converts the …………... the computer produces to ………………….. that can pass over telephone system.

A. Data, signal

B. Analog signal, digital signal

C. Digital signal, analog signal

D. signal, data

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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 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

Thick Ethernet cable uses what type of connector? Select all that apply.

A. RJ-45

B. AUI

C. DB-15

D. BNC

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4

Which of the following use default routes for inter domain routing?

A. Type 2

B. Type 4

C. Type 3

D. Type 1

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4

Transmission medias are classified into two main categories, which are -------------- and --------------------.

A. twisted pair, coaxial

B. guided , unguided

C. analog, digital

D. synchronous, Asynchronous

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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

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

Which of the following is also known as IP masquerading?

A. Fiber Distributed Data Interface (FDDI)

B. Network Address Translation (NAT)

C. Classless Inter-Domain Routing (CIDR)

D. None of the above

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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

What is the maximum distance of single-mode fiber (SMF)?

A. 300 meters

B. 500 meters

C. 2km

D. 850 meters

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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 port for Telnet?

A. 23

B. 21

C. 25

D. 80

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4

Which is the port used by HTTPS?

A. 123

B. 143

C. 69

D. 443

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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

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

A. True.

B. False.

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4

Your network has gotten a single class C address but has 300 computers. How can you connect them to the Internet?

A. Use IPX.

B. Implement NAT.

C. Use DHCP.

D. Use DNS.

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4

25 is used by SMTP

A. True.

B. False.

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4

You have a network card with only one connector, which looks like a place to plug an oversized phone cord. What type of card is it?

A. token ring

B. decnet

C. d. ethernet

D. fiber optic

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4

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

A. 185 meters

B. 500 feet

C. 1600 feet

D. 1 mile

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4

Which of the following SIP request terminates a call?

A. ACK

B. BYE

C. INVITE

D. CANCEL

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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

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 type of connector is used on 10Base2 networks?

A. SC

B. BNC

C. RJ-45

D. RJ-11