CCNA 1 v7.0 Final Exam Answers Full - Introduction to Networks

Which scenario describes a function provided by the transport layer?

A student has two web browser windows open in order to access two web sites. The transport layer ensures the correct web page is delivered to the correct browser window.

Which type of server relies on record types such as A, NS, "AAAA" , and MX in order to provide services?------------------------------------- A client packet is received by a server. The packet has a destination port number of 53. What service is the client requesting?

DNS

Refer to the exhibit. Host B on subnet Teachers transmits a packet to host D on subnet Students. Which Layer 2 and Layer 3 addresses are contained in the PDUs that are transmitted from host B to the router?

Layer 2 destination address = 00-00-0c-94-36-ab Layer 2 source address = 00-00-0c-94-36-bb Layer 3 destination address = 172.16.20.200 Layer 3 source address = 172.16.10.200

Refer to the exhibit. The IP address of which device interface should be used as the default gateway setting of "host H1"?

R1: G0/0

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.)

RFI​ - EMI

What service is provided by "DNS"?

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

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?

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

A network administrator is adding a new LAN to a branch office. The new LAN must support 61 connected devices. What is the smallest network mask that the network administrator can use for the new network?

255.255.255.192

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?

255.255.255.224

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

internet

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

ipconfig

What does the term "attenuation" mean in data communication?

loss of signal strength as distance increases

What characteristic describes a "virus"?-------------------------------------------------------------What characteristic describes a Trojan horse?

malicious software or code "running on an end" device

What three requirements are defined by the protocols used in network communcations to allow message transmission across a network? (Choose three.)

message size - message encoding - delivery options

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?

peer-to-peer (P2P)

Refer to the exhibit. If "Host1" were to transfer a file to the server, what layers of the TCP/IP model would be used?

"application" , transport, Internet, and network "access layers"

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?

"audio" conference, financial transactions,"web page"

Refer to the exhibit. Which protocol was responsible for building the "table that is shown"?

ARP

What service is provided by SMTP?

Allows clients to send email to a mail server and the servers to send email to other servers.

What service is provided by "Internet Messenger"?

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

Which two protocols operate at the top layer of the TCP/IP protocol suite? (Choose two.)

POP - DNS

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

POP3

Refer to the exhibit. An administrator is trying to configure the switch but receives the error message that is displayed in the exhibit. What is the problem?

The administrator must first enter privileged EXEC mode before issuing the command.

A technician with a PC is using multiple applications while connected to the Internet. How is the PC able to keep track of the data flow between multiple application sessions and have each application receive the correct packet flows?

The data flow is being tracked based on the source port number that is used by each application.

What service is provided by HTTPS?

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

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

ZigBee

What characteristic describes a DoS attack?

an attack that slows or crashes a device or network service

A company has a file server that shares a folder named Public. The network security policy specifies that the Public folder is assigned Read-Only rights to anyone who can log into the server while the Edit rights are assigned only to the network admin group. Which component is addressed in the AAA network service framework?

authorization

What are two characteristics of IP? (Choose two.)

does not require a dedicated end-to-end connection - operates independently of the network media

What are "proprietary protocols" ?

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

An employee of a large corporation remotely logs into the company using the appropriate username and password. The employee is attending an important video conference with a customer concerning a large sale. It is important for the video quality to be excellent during the meeting. The employee is unaware that after a successful login, the connection to the company ISP failed. The secondary connection, however, activated within seconds. The disruption was not noticed by the employee or other employees.What three network characteristics are described in this scenario? (Choose three.)

security - quality of service - fault tolerance

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

video - voice