final exam Study
What is a characteristic of UTP cabling?
cancellation
See question 19 on web site.
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See question 25 on the web site.
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See question 51 on web site
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See question 52 on web site
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See question 58 on web site
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Which domain name would be an example of top-level domain?
.com
What are the three ranges of IP addresses that are reserved for internal private use? (Choose three.)
10.0.0.0/8 172.16.0.0/12 192.168.0.0/16
Which subnet would include the address 192.168.1.96
192.168.1.64/26
What is the most compressed representation of the IPv6 address 2001:0000:0000:abcd:0000:0000:0000:0001?
2001:0:0:abcd::1
What is the dotted decimal representation ot the IPv4 address 11001011.00000000.01110001.11010011
203.0.113.211
A site administrator has been told that a particular network at the site must accommodate 126 hosts. Which subnet mask would be used that contains the required number of hosts bits?
255.255.255.128
How many valid host addresses are available on an IPv4 subnet that is configured with a /26 mask?
62
What is a characteristic of a fault tolerant network?
A network that recovers quickly when a failure occurs and depends on redundancy to limit the impact of a failure.
What method is used to manage contention-based access on a wireless network?
CSMA/CA
A wireless host needs to request an IP address. What protocol would be used to process the request?
DHCP
A home user is looking for an ISP connection that provides high speed digital transmission over regular lines. What ISP connection type should be used?
DSL
Which range of link-local addresses can be assigned to an IPv6-enabled interface?
FE80::/10
What are two benefits of using a layered network model? (Choose two.)
It assists in protocol. It prevents technology in one layer from affecting other layers.
What is an advantage to using a protocol that is defined by an open standard?
It encourages competition and promotes choices.
What is the function of the shell in and OS?
It interfaces between the users and the kernel.
What unique address in embedded in an Ethernet NIC and used for communication on an Ethernet network?
MAC address
What is a benefit f using cloud computing in networking?
Network capabilities are extended without requiring investment in new infrastructure, personnel, or software.
What protocol is responsible for controlling the size of segments and the rate at which segments are exchanged between a web client and a web server?
TCP
What protocol is responsible for controlling the size of the segments and the rate at which segments are exchanged between a web client and web server?
TCP
A network techniciaan is attempting to configure an interface by entering the following command: SanJose(config)# ip address 192.168.2.1 255.255.255.0. The command is rejected by the device. What is the reason for this?
The command is being entered from the wrong mode of operation.
A network technician is attempting to configure an interface by enter the following command: ip address 192.168.2.1 255.255.255.0. The command is rejected by the device. What is the reason for this?
The command is being entered from the wrong mode of operation.
After making configuration changes on a Cisco switch, an network administrator issues a copy running-config startup-config command. What is the result of issuing this command?
The new configuration will be loaded if the switch is restarted
During the encapsulation process what occurs at the data link layer for a PC connected to an Ethernet network?
The physical address is added.
On which switch interface would an administrator configure an IP address so that the switch can be managed remotely?
VLAN 1
On which switch interface would an administrator configure an IP address so that the switch can be managed remotely?
VLAN1
A company is expanding its business to other countries. All branch offices must remain connected to corporate headquarters at all times. Which network technology is required to support the requirement?
WAN
What are three characteristics of multicast transmission? (Choose three.)
a single packet can be sent to a group of hosts multicast transmission can be used by routers to exchange routing information. routers will not forward multicast addresses in the range 224.0.0.0 to 224.0.0.225
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 connection provides a secure CLI session with encryption to a Cisco switch?
an SSH connection
which connection provides a secure CLI session encryption to a Cisco switch?
and SSH connection
Three bank employees are using the corporate network. The first employee uses a web browser to view a company webpage 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.
How dose quality of service help a network support a wide range of application and services?
by providing mechanisms to manage congested network traffic.
Which two tasks are functions of the presentation layer? (Choose two.)
compression encryption
What are the three primary functions provided by Layer 2 data encapsulation? (Choose three.)
data link layer addressing detection of errors through CRC calculations delimiting groups of bits into frames
What are the three primary functions provided by Layer 2 data encapsulation? (Choose three)
datalink layer addressing detection of errors through CRC calculations delimiting groups of bits into frames
What addresses are mapped by ARP?
destination MAC address to a destination IPv4 address
If a device receives an Ethernet frame of 60 bytes, what will it do?
drop the frame
Which switching method has the lowest level of latency?
fast-forward
What layer is responsible for routing messages through an internetwork in the TCP/IP model?
internet
What function does pressing the command key have when entering a command in IOS?
it completes the remainder of a partially typed word in a command.
What purpose does NAT64 serve in IPv6?
it converts IPv6 packets into IPv4 packets
What are two characteristics of fiber-optic cable? (Choose two.)
it is not affected by EMI or RFI it is more expensive that UTP cabling is
What is a characteristic of the LLC sublayer?
it places information in the frame allowing multiple Layer 3 protocols to use the same network interface and media.
What is a characteristic of the LLC sublayer?
it places information in the frame allowing multiple layer 3 protocols to use the same network interface and media
What will a host on an ethernet network do if it receives a frame with a destination MAC address that does not match it's own MAC address?
it will discard the frame
What will a host on and Ethernet network do if it receives a frame with a destination MAC address that does not match its own MAC address?
it will discard the frame
See # 8 on web site
lineconin
When applied to a router, which command would help mitigate brute-force password attacks against the router?
login block-for 60 attempts 5 within 60
Which example of malicious code would be classified as a Trojan horse?
malware that was written to look like a video game
Which two OSI model layers have the same funtionality as two layers of the TCP/IP model? (Choose two.)
network, transport
A technician can ping the IP address of the web server of a remote company but cannot successfully ping the URL address of the same web server. Which software utility can the technician use to diagnose the problem?
nslookup
A network team is comparing physical WAN topologies for connecting remote sites to a headquarters building. Which topology provides high availability and connects some, but not all, remote devices?
partial mesh
A network administrator is troubleshooting connectivity issues on a server. Using a tester, the administrator notices that the signals generated by the server NIC are distorted and not usable. In which layer of the OSI model is the error categorized?
physical layer
What is a key characteristic of the peer-to-peer networking model?
resource sharing without a dedicated server
What are two services provided by the OSI network layer? (Choose two.)
routing packets toward the destination encapsulating PDUs from the transport layer
Which name is assigned to the transport layer PDU?
segment
Which statement accurately describes a TCP/IP encapsulation process when a PC is sending data to the network?
segments are sent from the transport layer to the internet layer.
Which frame forwarding method receives the entire frame and performs a CRC check to detect errors before forwarding the frame?
store-and-forward switching
APC obtains its IP address from a DHCP server. It the PC is taken off the network for repair, what happens to the ip address configuration?
the address is returned to the pool for reuse when the lease expires
A network administrator is measuring the transfer of its across the company backbone for a mission critical financial application. The administrator notices that the network throughput appears lower than the bandwidth expected. Which three factors could influence the differences in the throughput? (Choose three.)
the amount of traffic that is currently crossing the network. the type of traffic that is crossing the network the latency that is created by the number of network devices that the data is crossing.
A network administrator is measuring the transfer of bits across the company backbone for a mission critical financial application. The administrator notices that the network throughput appears lower than the bandwidth expected. Which three factors could influence the differences in throughput? (Choose three.)
the amount of traffic that is currently crossing the network. the type of traffic that is crossing the network the latency that is created by the number of network devices that the data is crossing.
A user opens three browsers on the same PC to access www.cisco.com to search for certification course information. The Cisco web server sends a datagram as a reply to the request from on of the web browsers. Which information is used by the TCP/IP protocol stack in the PC to identify which of the three web browsers should receive the reply?
the destination port number
Under which two circumstances will a switch flood a frame out of every port except the port that the frame was received on? (Choose two.)
the frame has the broadcast address as the destination address the destination address is unknown to the switch
Which statement is true about variable-length subnet masking?
the size of each subnet may be different, depending on requirements.
What are two characteristics of Ethernet MAC addresses? (Choose two.)
they are globally unique they are expressed as 12 hexadecimal digits
What are two way that TCP uses the sequence numbers in a segment? (Choose two.)
to identify missing segments at the destination to reassemble the segments at the remote location
An administrator uses the Ctrl-Shift-6 key conbination on a switch after issuing the ping command. What is the purpose of using these keystrokes?
to interrupt the ping process.
What are two functions of NVRAM? (Choose two.)
to retain contents when power is removed to store the startup configuration file
Which procedure is used to reduce the effect of crosstalk in copper cables?
twisting the opposing circut wire pairs together.