Final Redes 1

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

aWhich wireless technology has low-power and data rate requirements making it popular in home automation applications?. ZigBee. LoRaWAN. 5G. WI-FI.

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

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

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

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

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.

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

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?. client-based. master-slave. point-to-point. peer-to-peer (P2P).

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

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?. financial transactions, web page, audio conference. audio conference, financial transactions, web page. financial transactions, audio conference, web page. audio conference, web page, financial transactions.

Match the description to the IPv6 addressing component. (Not all options are used.). . .

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

Match the characteristic to the forwarding method. (Not all options are used.). . .

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

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

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. . .

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

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.). crosstalk. extended length of cabling. RFI. signal attenuation. EMI.

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

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

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?. 255.255.255.128. 255.255.255.192. 255.255.255.224. 255.255.255.240.

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

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

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

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?. 255.255.255.240. 255.255.255.224. 255.255.255.192. 255.255.255.128.

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. (Not all options are used.). Network A. Network B. Network C. Network D.

What characteristic describes a DoS attack?. the use of stolen credentials to access private data. a network device that filters access and traffic coming into a network. software that is installed on a user device and collects information about the user. an attack that slows or crashes a device or network service.

Match the application protocols to the correct transport protocols. DHCP. FTP. HTTP. SMTP. TFTP.

What service is provided by SMTP?. Allows clients to send email to a mail server and the servers to send email to other servers. Allows remote access to network devices and servers. Uses encryption to provide secure remote access to network devices and servers. An application that allows real-time chatting among remote users.

Which scenario describes a function provided by the transport layer?. A student is using a classroom VoIP phone to call home. The unique identifier burned into the phone is a transport layer address used to contact another network device on the same network. A student is playing a short web-based movie with sound. The movie and sound are encoded within the transport layer header. 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. A corporate worker is accessing a web server located on a corporate network. The transport layer formats the screen so the web page appears properly no matter what device is being used to view the web site.

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. Layer 2 destination address = 00-00-0c-94-36-dd 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. Layer 2 destination address = 00-00-0c-94-36-cd Layer 2 source address = 00-00-0c-94-36-bb Layer 3 destination address = 172.16.20.99 Layer 3 source address = 172.16.10.200. Layer 2 destination address = 00-00-0c-94-36-cd Layer 2 source address = 00-00-0c-94-36-bb Layer 3 destination address = 172.16.20.99 Layer 3 source address = 172.16.10.200.

What does the term “attenuation” mean in data communication?. strengthening of a signal by a networking device. leakage of signals from one cable pair to another. time for a signal to reach its destination. loss of signal strength as distance increases.

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 entire command, configure terminal, must be used. The administrator is already in global configuration mode. The administrator must first enter privileged EXEC mode before issuing the command. The administrator must connect via the console port to access global configuration mode.

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

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?. automation. accounting. authentication. authorization.

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. connector specifications. media selection. delivery options. end-device installation.

What are two characteristics of IP? (Choose two.). does not require a dedicated end-to-end connection. operates independently of the network media. retransmits packets if errors occur. re-assembles out of order packets into the correct order at the receiver end guarantees delivery of packets.

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. scalability. powerline networking. integrity. fault tolerance.

What are two common causes of signal degradation when using UTP cabling? (Choose two.). improper termination. low-quality shielding in cable. installing cables in conduit. low-quality cable or connectors. loss of light over long distances.

Which subnet would include the address 192.168.1.96 as a usable host address?. 192.168.1.64/26. 192.168.1.32/27. 192.168.1.32/28. 192.168.1.64/29.