final exam

What is the subnet ID associated with the IPv6 address 2001:DA48:FC5:A4:3D1B::1/64?

2001:DA48::/64​ 2001:DA48:FC5::A4:/64​ 2001:DA48:FC5:A4::/64​ 2001::/64

A client packet is received by a server. The packet has a destination port number of 67. What service is the client requesting?

FTP DHCP Telnet SSH

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. What three facts can be determined from the viewable output of the show ip interface brief command? (Choose three.)

Two physical interfaces have been configured. The switch can be remotely managed. One device is attached to a physical interface. Passwords have been configured on the switch. Two devices are attached to the switch. The default SVI has been configured.

What service is provided by HTTPS?

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

What service is provided by HTTP?

Uses encryption to secure the exchange of text, graphic images, sound, and video on the web. Allows for data transfers between a client and a file server. An application that allows real-time chatting among remote users. A basic set of rules for exchanging text, graphic images, sound, video, and other multimedia files on the web.

What service is provided by BOOTP?

Uses encryption to secure the exchange of text, graphic images, sound, and video on the web. Allows for data transfers between a client and a file server. Legacy application that enables a diskless workstation to discover its own IP address and find a BOOTP server on the network. A basic set of rules for exchanging text, graphic images, sound, video, and other multimedia files on the web

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

ZigBee

What characteristic describes adware?

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 the use of stolen credentials to access private data an attack that slows or crashes a device or network service

What characteristic describes a DoS attack?

an attack that slows or crashes a device or network service

During the process of forwarding traffic, what will the router do immediately after matching the destination IP address to a network on a directly connected routing table entry?

analyze the destination IP address switch the packet to the directly connected interface look up the next-hop address for the packet discard the traffic after consulting the route table

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

What characteristic describes antispyware?

applications that protect end devices from becoming infected with malicious software a network device that filters access and traffic coming into a network software on a router that filters traffic based on IP addresses or applications a tunneling protocol that provides remote users with secure access into the network of an organization

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

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 group of Windows PCs in a new subnet has been added to an Ethernet network. When testing the connectivity, a technician finds that these PCs can access local network resources but not the Internet resources. To troubleshoot the problem, the technician wants to initially confirm the IP address and DNS configurations on the PCs, and also verify connectivity to the local router. Which three Windows CLI commands and utilities will provide the necessary information? (Choose three.)

netsh interface ipv6 show neighbor arp -a tracert ping ipconfig nslookup telnet

Refer to the exhibit. If PC1 is sending a packet to PC2 and routing has been configured between the two routers, what will R1 do with the Ethernet frame header attached by PC1?

nothing, because the router has a route to the destination network open the header and use it to determine whether the data is to be sent out S0/0/0 open the header and replace the destination MAC address with a new one remove the Ethernet header and configure a new Layer 2 header before sending it out S0/0/0

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)

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? 255.255.255.128

255.255.255.224

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.

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 FTP?

Allows for data transfers between a client and a file server.

What service is provided by Internet Messenger?

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

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

DNS

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

DNS

A user is attempting to access http://www.cisco.com/ without success. Which two configuration values must be set on the host to allow this access? (Choose two.)

DNS server source port number HTTP server source MAC address default gateway

A disgruntled employee is using some free wireless networking tools to determine information about the enterprise wireless networks. This person is planning on using this information to hack the wireless network. What type of attack is this?

DoS access reconnaissance Trojan horse

Which range of link-local addresses can be assigned to an IPv6-enabled interface?

FE80::/10

67. What are the two most effective ways to defend against malware? (Choose two.)

Implement a VPN. Implement network firewalls. Implement RAID. Implement strong passwords. Update the operating system and other application software. Install and update antivirus software.

20. 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.

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-abLayer 2 source address = 00-00-0c-94-36-bbLayer 3 destination address = 172.16.20.200Layer 3 source address = 172.16.10.200

Which two statements accurately describe an advantage or a disadvantage when deploying NAT for IPv4 in a network? (Choose two.)

NAT adds authentication capability to IPv4. NAT introduces problems for some applications that require end-to-end connectivity. NAT will impact negatively on switch performance. NAT provides a solution to slow down the IPv4 address depletion. NAT improves packet handling. NAT causes routing tables to include more information.

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.

What are two problems that can be caused by a large number of ARP request and reply messages? (Choose two.)

Switches become overloaded because they concentrate all the traffic from the attached subnets. The ARP request is sent as a broadcast, and will flood the entire subnet. The network may become overloaded because ARP reply messages have a very large payload due to the 48-bit MAC address and 32-bit IP address that they contain. A large number of ARP request and reply messages may slow down the switching process, leading the switch to make many changes in its MAC table. All ARP request messages must be processed by all nodes on the local network.

A network administrator needs to keep the user ID, password, and session contents private when establishing remote CLI connectivity with a switch to manage it. Which access method should be chosen?

Telnet AUX SSH Console

What happens when the transport input ssh command is entered on the switch vty lines?

The SSH client on the switch is enabled. The switch requires a username/password combination for remote access. Communication between the switch and remote users is encrypted. The switch requires remote connections via a proprietary client software.

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.

The global configuration command ip default-gateway 172.16.100.1 is applied to a switch. What is the effect of this command?

The switch can communicate with other hosts on the 172.16.100.0 network. The switch can be remotely managed from a host on another network. The switch is limited to sending and receiving frames to and from the gateway 172.16.100.1. The switch will have a management interface with the address 172.16.100.1.

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

68. Which type of security threat would be responsible if a spreadsheet add-on disables the local software firewall

brute-force attack Trojan horse DoS buffer overflow

When a switch configuration includes a user-defined error threshold on a per-port basis, to which switching method will the switch revert when the error threshold is reached?

cut-through store-and-forward fast-forward fragment-free

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 two primary responsibilities of the Ethernet MAC sublayer? (Choose two.)

error detection frame delimiting accessing the media data encapsulation logical addressing

What are two common causes of signal degradation when using UTP cabling? (Choose two.)

improper termination low-quality cable or connectors

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 Trojan horse?

malicious software or code running on an end device

What characteristic describes a virus?

malicious software or code running on an end device

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

What characteristic describes spyware?

software that is installed on a user device and collects information about the user

Which switching method drops frames that fail the FCS check?

store-and-forward switching

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

video and voice