1.2

Question 1

_____________ fiber cables support data rates up to 10 Gbps or better and cable runs of many kilometers, depending on the quality of the cable and optics.

Answer 1

Single-mode

Question 2

_____________ based surveillance is a cheaper means of monitoring than maintaining separate guards at each perimeter gateway or zone. These cameras can be easily connected to already available IP-based network.

Answer 2

Camera-

Question 3

_____________ cabling is a type of twisted pair cable that is less susceptible to interference and crosstalk because each pair is surrounded by a braided shield.

Answer 3

Shielded twisted pair

Question 4

Ethernet can use _____________ rated to a particular Cat standard. UTP is made of twisted pair wires that do not use shielding to prevent interference.

Answer 4

Unshielded Twisted Pair (UTP)

Question 5

WEP’s encryption system (based on the ___________ encryption cipher) is flawed. Version 1 of WPA still uses the __________ cipher, but it adds a mechanism called the Temporal Key Integrity Protocol (TKIP) to make it stronger. AES replaced ___________

Answer 5

RC4

Question 6

___________ensures that voice or video communications are free from problems, such as dropped packets, delays, or jitter.

Answer 6

Quality of Service (QoS)

Question 7

_____GHz is better at propagating through solid surfaces, making it ideal for providing the longest signal range.

Answer 7

2.4

Question 8

Port 110 is _________________________ is an early example of a mailbox access protocol. Examples of ### client applications would be Microsoft Outlook or Mozilla Thunderbird.

Answer 8

POP3. The Post Office Protocol (POP)

Question 9

___________________ authenticate server machines when using Transport Layer Security (TLS). An administrator installs the certificates on a web or email server to validate its identity and establish a secure transmission channel.

Answer 9

Digital certificates

Question 10

A ___________________________ overlays a floor plan with graphics showing signal strength and channel utilization at different points in the building.

Answer 10

wireless site survey report

Question 11

The __________________ step of the CompTIA Network+ troubleshooting methodology is identifying the problem, which includes approaching multiple problems individually and determining if anything has changed.

Answer 11

first

Question 12

____________________ and ____________________have gained some currency over the last few years. With a peer-to-peer PAN, one might establish close-range network links between a variety of devices, such as smartphones, tablets, headsets, and printers.

Answer 12

Personal area networks (PAN) and wireless PAN (WPAN)

Question 13

The media access control (MAC) address of a wireless access point (AP) is used as the ______________.

Answer 13

Basic Service Set Identifier (BSSID)

Question 14

At each router, the Time to Live (TTL) IP header field is decreased by at least 1. This prevents badly addressed packets from __________________ the network.

Answer 14

permanently circulating

Question 15

The administrator is using __________________ where the active router is known as the master and all other backup routers monitor the status of the master.

Answer 15

Virtual Router Redundancy Protocol (VRRP)