Module 1- 1-25

Question 1

Which two traffic types use the Real-Time Transport Protocol (RTP)?

Answer 1

Video, Voice

Question 2

Which wireless technology has low-power and data rate requirements making it popular in home automation applications?

Answer 2

ZigBee

Question 3

Which layer of the TCP/IP model provides a route to forward messages through an internetwork?

Answer 3

Internet

Question 4

Which type of server relies on record types such as A, NS, AAAA, and MX in order to provide services?

Answer 4

DNS

Question 5

What are proprietary protocols?

Answer 5

protocols developed by organizations who have control over their definition and operation

Question 6

What service is provided by DNS?

Answer 6

Resolves domain names, such as cisco.com, into IP addresses.

Question 7

A client packet is received by a server. The packet has a destination port number of 110. What service is the client requesting?

Answer 7

POP3

Question 8

What command can be used on a Windows PC to see the IP configuration of that computer?

Answer 8

ipconfig

Question 9

A wired laser printer is attached to a home computer. That printer has been shared so that other computers on the home network can also use the printer. What networking model is in use?

Answer 9

peer-to-peer (P2P)

Question 10

What characteristic describes a virus?

Answer 10

malicious software or code running on an end device

Question 11

Three bank employees are using the corporate network. The first employee uses a web browser to view a company web page in order to read some announcements. The second employee accesses the corporate database to perform some financial transactions. The third employee participates in an important live audio conference with other corporate managers in branch offices. If QoS is implemented on this network, what will be the priorities from highest to lowest of the different data types?

Answer 11

audio conference, financial transactions, web page

Question 12

12,13,14,15,17,18,28,30, 33,35,43,47

Answer 12

check

Question 13

What service is provided by Internet Messenger?

Answer 13

An application that allows real-time chatting among remote users.

Question 14

A network administrator notices that some newly installed Ethernet cabling is carrying corrupt and distorted data signals. The new cabling was installed in the ceiling close to fluorescent lights and electrical equipment. Which two factors may interfere with the copper cabling and result in signal distortion and data corruption? (Choose two.)

Answer 14

RFI , EMI

Question 15

A host is trying to send a packet to a device on a remote LAN segment, but there are currently no mappings in its ARP cache. How will the device obtain a destination MAC address?
(A host is trying to send a packet to a device on a remote LAN segment, but there are currently no mappings

Answer 15

It will send an ARP request for the MAC address of the default gateway.

Question 16

A client packet is received by a server. The packet has a destination port number of 53. What service is the client requesting?

Answer 16

DNS

Question 17

A network administrator is adding a new LAN to a branch office. The new LAN must support 25 connected devices. What is the smallest network mask that the network administrator can use for the new network?

Answer 17

255.255.255.224

Question 18

What characteristic describes a Trojan horse?

Answer 18

malicious software or code running on an end device

Question 19

What service is provided by HTTPS?

Answer 19

Uses encryption to secure the exchange of text, graphic images, sound, and video on the web.