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69 Cards in this Set

  • Front
  • Back

What is the most common central device used today to connect computers to a network?



Switch

What is the most common adapter or connector used to connect a computer to a wired network?

RJ45

Which of the following does a switch use for increased performance?

Full-Duplex

What do you use to isolate a group of computers within your organization?

VLAN

What do you use to create VLANs?

Switch

What zone is used to publish external websites for an organization?

DMZ

Which topology is most redundant and most expensive?

Mesh

What standard describes CSMA/CD?

802.3

What mechanism do wireless networks use to access the network?

CSMA/CA

What model promises the most processing power?

Distributive Computing

Which model users a central database for authentication?

Client Server

What type of server does Active Director run on?

Network Controller

Which model has each host have their own security database?

Peer to Peer

What type of communication is sent to a single designated host?

Unicast

What is used to uniquely identify a host on a TCP/IP network?

IP address

A _________ is a single computer or device that connects to a TCP/IP network.

Host or a node

What is the central device used in wireless LANs?

Wireless Access Point

What command do you use to test the TCP/IP stack on a computer?

Ping local host


Ping loopback


Ping 127.0.0.1

You need to divide a network into three subnets. Which Device should you use?

Router

Connecting to a private Network address from a public network requires:

Network Address Translation

What model is used to describe how data communication occurs between hosts?

OSI Reference Model

Which layer in the OSI model do MAC addresses and switches use?

Data Link

Which layer in the OSI model covers routing between networks?

Network

Which layer in the OSI model is used to verify that data was delivered without error?

Network

Which layer in the OSI model covers HTTP, FTP and RDC?

Application

Which layer of the OSI model is used to create a connection so that a host can transfer files?

Session

Which layer of the OSI model includes VLANs?

Data Link

Which protocol do you use as the transport protocol for a video application?

UDP

Which port categories include inbound ports of HTTP, HTTPS, FTP, and DNS?

Well-known ports

What layer in the OSI model is responsible for logging on and off?

Session

What layer in the OSI model is used to encrypt data?

Presentation

Which layer in the OSI model includes the Network and cable adapter?

Physical

How many layers does the TCP/IP model have?

4

Which protocol is used to translate IP addresses to MAC addresses?

ARP

What ports are defined above 49,152?

Dynamic ports

A layer 3 switch is similar to a

Router

TCP/IP and IPX/SPX are known as _________ stacks.

Protocols

What is the advantage of UDP over TCP?

Less Overhead - faster performance

What are the seven layers found in the OSI model, in order?

Physical – Data Link – Network – Transport – Session – Presentation – Application

What is the maximum speed supported by 802.11b?

11 Mbps

One reason to incorporate VLANs in a network is to:

Reduce the number of nodes in a broadcast domain

What is the minimum cabling requirement for a 100 Base TX network?

Cat 5 UTP cable

A router’s static route is set by the:

Administrator

What type of record does DNS use to find a mail service?

Mail Exchanger (MX) DNS record

How many bits are there in an Internet Protocol version 6 (IPv6) address?

128

In which OSI layer does routing occur?

Network

The query protocol used to locate resources on a network is:

LDAP

What is the most common cable used today?

UTP

If you are making a crossover cable and one end is 568A, what should the other end be?

568B

If you want to connect a computer directly to another computer without using a switch, you use a

Crossover cable

You need to connect a twisted-pair cable to the back of a patch panel. What tool should you use?

Punched down tool

What is the minimum category of twisted-pair cable you need to support 100 Mbps?

CAT 5

When you pick up your wireless phone, your computer drops network connectivity. What could be the cause of the problem?

RFI

You are setting up a network within a warehouse using Category 6 UTP. However, parts of the network are down because of the heavy machinery used. What cable type should you use?

Fiber

What do you call it when electrical signals jump to another set of wires?

Crosstalk

What type of cable should be used as part of a fire code for a building?

Plenum rated

Which of the following is not a fiber connector?

RJ-45

Which of the following is a characteristic of single-mode fiber?

Single-mode fiber supports longer distances than multimode fiber.

Which protocol can be used to encrypt packets on the Internet?

HTTPS

What is the maximum speed supported by 802.11g?

54 Mbps

Which of the following are the characteristics of 802.11n?

Frame aggregation


Channel bonding


MIMO

What is the most secure encryption used in wireless network?

WPA2

What is used to identify a wireless network?

SSID

To test a cable, you would use a

Continuity tester

For organizations, using ___________ authentication for wireless networks is recommended.

802.1X

When a signal degrades as it runs through a wire, you have

Degradation

What mode users a wireless access point?

Infrastructure Mode

What command do you use to connect to a FTP server to download a file?

ftp

What are the private IP address?

10.0.0.0 - 10.255.255.255