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Networking intra exam

Terms in this set (46)

Which two traffic types use the Real-Time Transport Protocol (RTP)? (Choose two.)
voice & video
Which wireless technology has low-power and data rate requirements making it popular in home automation applications?
ZigBee
Which layer of the TCP/IP model provides a route to forward messages through an internetwork?
internet
Which type of server relies on record types such as A, NS, AAAA, and MX in order to provide services?
DNS
What are proprietary protocols
protocols developed by organizations who have control over their definition and operation
What service is provided by DNS?
Resolves domain names, such as cisco.com, into IP addresses.
client packet is received by a server. The packet has a destination port number of 110. What service is the client requesting?
POP3
What command can be used on a Windows PC to see the IP configuration of that computer?
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?
peer-to-peer (P2P)
What characteristic describes a virus?
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?
audio conference, financial transactions, web page
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?
application, transport, Internet, and network access 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: G0/0
What service is provided by Internet Messenger
An application that allows real-time chatting among remote users.
Refer to the exhibit. Which protocol was responsible for building the table that is shown?
ARP
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
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 client packet is received by a server. The packet has a destination port number of 53. What service is the client requesting?
255.255.255.224
What characteristic describes a Trojan horse
malicious software or code running on an end device
What service is provided by HTTPS?
Uses encryption to secure the exchange of text, graphic images, sound, and video on the web.
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.
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
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.)
What characteristic describes a DoS attack?
an attack that slows or crashes a device or network service
What service is provided by SMTP
Allows clients to send email to a mail server and the servers to send email to other servers.
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. 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
What does the term "attenuation" mean in data communication
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 administrator must first enter privileged EXEC mode before issuing the command.
Which two protocols operate at the top layer of the TCP/IP protocol suite? (Choose two.)
POP
DNS
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 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
What are two characteristics of IP? (Choose two.)
does not require a dedicated end-to-end connection

operates independently of the network media
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 are two common causes of signal degradation when using UTP cabling? (Choose two.)
improper termination
low-quality cable or connectors
Which subnet would include the address 192.168.1.96 as a usable host address?
192.168.1.64/26
Refer to the exhibit. On the basis of the output, which two statements about network connectivity are correct? (Choose two.)
There are 4 hops between this device and the device at 192.168.100.1.
There is connectivity between this device and the device at 192.168.100.1.
Which two statements describe how to assess traffic flow patterns and network traffic types using a protocol analyzer? (Choose two.)
Capture traffic during peak utilization times to get a good representation of the different traffic types.

Perform the capture on different network segments.
What is the consequence of configuring a router with the ipv6 unicast-routing global configuration command?​
The IPv6 enabled router interfaces begin sending ICMPv6 Router Advertisement messages.
Which three layers of the OSI model map to the application layer of the TCP/IP model?
(Choose three.)
application
session
presentation
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?
remove the Ethernet header and configure a new Layer 2 header before sending it out S0/0/0
What will happen if the default gateway address is incorrectly configured on a host?
The host cannot communicate with hosts in other networks.
When a host is encapsulating a packet into a frame, it refers to the MAC address table to determine the mapping of IP addresses to MAC addresses.
If a host is ready to send a packet to a local destination device and it has the IP address but not the MAC address of the destination, it generates an ARP broadcast.

If a device receiving an ARP request has the destination IPv4 address, it responds with an ARP reply.
A network administrator is adding a new LAN to a branch office. The new LAN must support 90 connected devices. What is the smallest network mask that the network administrator can use for the new network?
255.255.255.128
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