Cisco Final Exam 1-25

A client packet is received by a server. The packet has a destination port number of 53. What service is the client requesting? A. DNS B. NetBIOS (NetBT) C. POP3 D. IMAP

A. DNS

What service is provided by Internet Messenger? A. An application that allows real-time chatting among remote users. B. Allows remote access to network devices and servers. C. Resolves domain names, such as cisco.com, into IP addresses. D. Uses encryption to provide secure remote access to network devices and servers.

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

What service is provided by DNS? A. Resolves domain names, such as cisco.com, into IP addresses. B. A basic set of rules for exchanging text, graphic images, sound, video, and other multimedia files on the web. C. Allows for data transfers between a client and a file server. D. Uses encryption to secure the exchange of text, graphic images, sound, and video on the web.

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

Which two traffic types use the Real-Time Transport Protocol (RTP)? (Choose two.) A. video B. web C. file transfer D. voice E. peer to peer

A. Video D. Voice

Which wireless technology has low-power and data rate requirements making it popular in home automation applications? A. ZigBee B. LoRaWAN C. 5G D. Wi-Fi

A. ZigBee

What characteristic describes a Trojan horse? A. malicious software or code running on an end device B. an attack that slows or crashes a device or network service C. the use of stolen credentials to access private data D. a network device that filters access and traffic coming into a network

A. malicious software or code running on an end device

Refer to the exhibit. Which protocol was responsible for building the table that is shown? A. DHCP B. ARP C. DNS D. ICMP

B. ARP

Refer to the exhibit. Match the network with the correct IP address and prefix that will satisfy the usable host addressing requirements for each network.

Network A - 192.168.128 /25 Network B - 192.168.128 /26 Network C - 192.168.128 /27 Network D - 192.168.128 /30

A client packet is received by a server. The packet has a destination port number of 110. What service is the client requesting? DNS DHCP SMTP POP3

POP3

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? A. The data flow is being tracked based on the destination MAC address of the technician PC. B. The data flow is being tracked based on the source port number that is used by each application. C. The data flow is being tracked based on the source IP address that is used by the PC of the technician. D. The data flow is being tracked based on the destination IP address that is used by the PC of the technician.

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

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? A. financial transactions, web page, audio conference B. audio conference, financial transactions, web page C. financial transactions, audio conference, web page D. audio conference, web page, financial transactions

B. audio conference, financial transactions, web page

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? A. 255.255.255.128 B. 255.255.255.192 C. 255.255.255.224 D. 255.255.255.240

C. 255.255.255.224

What are proprietary protocols? A. Protocols developed by private organizations to operate on any vendor hardware B. Protocols that can be freely used by any organization or vendor C. Protocols developed by organizations who have control over their definition and operation D. A collection of protocols known as the TCP/IP protocol suite

C. Protocols developed by organizations who have control over their definition and operation

Refer to the exhibit. The IP address of which device interface should be used as the default gateway setting of host H1? A. R1: S0/0/0 B. R2: S0/0/1 C. R1: G0/0 D. R2: S0/0/0

C. 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.) A. crosstalk B. extended length of cabling C. RFI​ D. EMI E. signal attenuation

C. RFI​ D. EMI

What service is provided by HTTPS? A. Uses encryption to provide secure remote access to network devices and servers. B. Resolves domain names, such as cisco.com, into IP addresses. C. Uses encryption to secure the exchange of text, graphic images, sound, and video on the web. D. Allows remote access to network devices and servers.

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

Which layer of the TCP/IP model provides a route to forward messages through an internetwork? A. application B. network access C. internet D. transport

C. internet

Refer to the exhibit. If Host1 were to transfer a file to the server, what layers of the TCP/IP model would be used? A. only application and Internet layers B. only Internet and network access layers C. only application, Internet, and network access layers D. application, transport, Internet, and network access layers E. only application, transport, network, data link, and physical layers F. application, session, transport, network, data link, and physical layers

D. application, transport, Internet, and network access layers

What command can be used on a Windows PC to see the IP configuration of that computer? A. show ip interface brief B. ping C. show interfaces D. ipconfig

D. ipconfig

What characteristic describes a virus? A. a network device that filters access and traffic coming into a network B. the use of stolen credentials to access private data C. an attack that slows or crashes a device or network service D. malicious software or code running on an end device

D. malicious software or code running on an end device

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? A. client-based B. master-slave C. point-to-point D. peer-to-peer (P2P)

D. peer-to-peer (P2P)

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

DNS

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. It will send the frame and use its own MAC address as the destination. B. It will send an ARP request for the MAC address of the destination device. C. It will send the frame with a broadcast MAC address. D. It will send a request to the DNS server for the destination MAC address. E. It will send an ARP request for the MAC address of the default gateway.

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