Cisco 1, Introduction to Networking Final Exam
Terms in this set (104)
The network administrator enters these commands into the R1 router:
R1# copy running-config tftp
Address or name of remote host [ ]?
When the router prompts for an address or remote host name, what IP address should the administrator enter at the prompt?
Which three statements characterize the transport layer protocols? (Choose three.)
TCP and UDP port numbers are used by application layer protocols.
TCP uses windowing and sequencing to provide reliable transfer of data.
TCP is a connection-oriented protocol. UDP is a connectionless protocol.
What is the purpose of ICMP messages?
to provide feedback of IP packet transmissions
A technician uses the ping 127.0.0.1 command. What is the technician testing?
the TCP/IP stack on a network host
What will a Layer 2 switch do when the destination MAC address of a received frame is not in the MAC table?
It forwards the frame out of all ports except for the port at which the frame was received.
What is a characteristic of the LLC sublayer?
It places information in the frame that allows multiple Layer 3 protocols to use the same network interface and media.
On which switch interface would an administrator configure an IP address so that the switch can be managed remotely?
A network engineer is measuring the transfer of bits across the company backbone for a mission critical database application. The engineer 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
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 two statements correctly describe a router memory type and its contents? (Choose two.)
ROM is nonvolatile and contains basic diagnostic software.
RAM is volatile and stores the IP routing table.
Which two components are necessary for a wireless client to be installed on a WLAN? (Choose two.)
wireless client software
The Server0 message is:
A host is accessing a Web server on a remote network. Which three functions are performed by intermediary network devices during this conversation? (Choose three.)
applying security settings to control the flow of data
notifying other devices when errors occur
regenerating data signals
Horizontal cabling Structure
Desktop PCs in an enterprise office
Backbone cabling in an enterprise
Guest access in a coffee shop
waiting rooms in a hospital
What is the correct order for PDU encapsulation?
Frame header, network header, transport header, data, frame trailer
Which address on a PC does not change, even if the PC is moved to a different network?
What will happen if the default gateway address is incorrectly configures on a host?
The host cannot communicate with hosts in other networks
A host PC has just booted and is attempting to lease an address through DHCP. Which two messages will the client typically broadcast on the network?
Refer to the exhibit. An administrator wants to change the name of a brand new switch, using the hostname command as shown. What prompt will display after the command is issued?
After making configuration changes, a network administrator issues a copy running-config startup-config command in a Cisco switch. What is the result of issuing this command?
The new configuration will be loaded if the switch is restarted.
Refer to the exhibit.A TCP segment from a server has been captured by Wireshark, which is running on a host. What acknowledgement number will the host return for the TCP segment that has been received?
Which technology provides a solution to IPv4 address depletion by allowing multiple devices to share one public IP address?
What is the purpose of the routing process?
to select the paths that are used to direct traffic to destination networks
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
A home user is looking for an ISP connection that provides high speed digital transmission over regular phone lines. What ISP connection type should be used?
Which connection provides a secure CLI session with encryption to a Cisco switch?
an SSH connection
What is the purpose of the network security accounting function?
to keep track of the actions of a user
Refer to the exhibit. A network administrator is configuring access control to switch SW1. If the administrator uses Telnet to connect to the switch, which password is needed to access user EXEC mode?
Which publicly available resources describe protocols, processes, and technologies for the Internet but do not give implementation details?
Request for Comments
A PC is configured to obtain an IP address automatically from network 192.168.1.0/24. The network administrator issues the arp -a command and notices an entry of 192.168.1.255 ff-ff-ff-ff-ff-ff. Which statement describes this entry?
This is a static map entry.
Which subnet would include the address 192.168.1.96 as a usable host address?
A particular website does not appear to be responding on a Windows 7 computer. What command could the technician use to show any cached DNS entries for this web page?
Which type of wireless security generates dynamic encryption keys each time a client associates with an AP?
A frame is transmitted from one networking device to another. Why does the receiving device check the FCS field in the frame?
to check the frame for possible transmission errors
Which IP addressing scheme should be changed?
What is the effect of configuring the ipv6 unicast-routing command on a router?
to enable the router as an IPv6 router
Which three IP addresses are private ? (Choose three.)
Refer to the exhibit. Consider the IP address configuration shown from PC1. What is a description of the default gateway address?
It is the IP address of the Router1 interface that connects the PC1 LAN to Router1.
During normal operation, from which location do most Cisco switches and routers run the IOS?
What is an important function of the physical layer of the OSI model?
It encodes frames into electrical, optical, or radio wave signals.
Which procedure is used to reduce the effect of crosstalk in copper cables?
twisting opposing circuit wire pairs together
What are the three primary functions provided by Layer 2 data encapsulation? (Choose three.)
detection of errors through CRC calculations
delimiting groups of bits into frames
data link layer addressing
What method is used to manage contention-based access on a wireless network?
What happens when part of an Internet radio transmission is not delivered to the destination?
The transmission continues without the missing portion.
What is the auto-MDIX feature on a switch?
the automatic configuration of an interface for a straight-through or a crossover Ethernet cable connection
Which function is provided by TCP?
detection of missing packets
How does a Layer 3 switch differ from a Layer 2 switch?
An IP address can be assigned to a physical port of a Layer 3 switch. However, this is not supported in Layer 2 switches.
Which two notations are useable nibble boundaries when subnetting in IPv6? (Choose two.)
What is the purpose of having a converged network?
to reduce the cost of deploying and maintaining the communication infrastructure
Refer to the exhibit. A ping to PC3 is issued from PC0, PC1, and PC2 in this exact order. Which MAC addresses will be contained in the S1 MAC address table that is associated with the Fa0/1 port?
just PC0 and PC1 MAC addresses
Which field in an IPv4 packet header will typically stay the same during its transmission?
What two preconfigured settings that affect security are found on most new wireless routers? (Choose two.)
default administrator password
Which parameter does the router use to choose the path to the destination when there are multiple routes available?
the lower metric value that is associated with the destination network
Refer to the exhibit. What is the significance of the asterisk (*) in the exhibited output?
The asterisk designates which file system is the default file system.
Match the phases to their correct stage in the router bootup process.
format the flash
During data communications, a host may need to send a single message to a specific group of destination hosts simultaneously. This message is in the form of a_____message
An administrator uses the Ctrl-Shift-6 key combination on a switch after issuing the ping command. What is the purpose of using these keystrokes?
to interrupt the ping process
Refer to the exhibit. Which area would most likely be an extranet for the company network that is shown?
Match the IPv6 address type
(Really Long one)
Match the description with the associated IOS mode
User EXEC mode:
limited number of basic monitoring commands.
The first entrance into the CLI of an IOS device.
Privileged EXEC mode:
accessed by entering the enable command.
identified by a prompt ending with the # character.
Global Configuration Mode:
changes made affect the operation of the device as a while
accessed by entering the configure terminal command.
In which default order will a router search for startup configuration information?
NVRAM, TFTP, setup mode
Open the PT Activity. Perform the tasks in the activity instructions and then answer the question.
Which IPv6 address is assigned to the Serial0/0/0 interface on RT2?
2001:db8:abc:5::1 (remember 5::1)
What is contained in the trailer of a data-link frame?
Match each description with the corresponding TCP mechanism.
Used to identify missing segments of data.
Received by a sender before transmitting more segments in a session.
Method of Managing segments of data loss
Number of bytes a destination device can accept and process at one time.
Refer to the exhibit. What is the maximum TIL value that is used to reach the destination www.cisco.com?
Which IPv4 address can be pinged to test the internal TCP/IP operation of a host?
A host is accessing a Telnet server on a remote network. Which three functions are performed by intermediary network devices during this conversation? (Choose three.)
regenerating data signals*
applying security settings to control the flow of data*
notifying other devices when errors occur*
Which statement is true about DHCP operation?
When a device that is configured to use DHCP boots, the client broadcasts a DHCPDISCOVER message to identify any available DHCP servers on the networK.*
Which type of wireless security is easily compromised?
What types of addresses make up the majority of addresses within the /8 block 1Pv4 bit space?
Which protocol supports rapid delivery of streaming media?
Real-Time Transport Protocol*
A network administrator notices that the throughput on the network appears lower than expected when compared to the end-to-end network bandwidth. Which three factors can
explain this difference? (Choose three.)
the amount of traffic*
the type of traffic*
the number and type of network devices that the data is crossing*
Which group of IPv6 addresses cannot be allocated as a host source address?
A host PC is attempting to lease an address through DHCP. What message is sent by the server to the client know it is able to use the provided IP information?
What is the protocol that is used to discover a physical address from a known logical address and what message type does it use?
Which group of IPv6 addresses cannot be allocated as a host source address??
A network administrator is configuring access control to switch SW1. If the administrator uses console line to connect to the switch, which password is needed to access user EXEC mode?
A _________ topology influences the type of network framing and media access control that will be used
Which two statements describe the characteristics of fiber-optic cabling? (Choose two.)
Fiber-optic cabling does not conduct electricity.
Fiber-optic cabling is primarily used as backbone cabling.
Which two protocols function at the internet layer? (Choose two.)
Which firewall technique blocks incoming packets unless they are responses to internal requests?
stateful packet inspection
Consider the following range of addresses:
The prefix-length for the range of addresses is ___.
What three application layer protocols are part of the TCP/IP protocol suite? (Choose three.)
Which communication tool allows real-time collaboration?
Which of the following are primary functions of a router? (Choose two.)
__________ is a best-effort, connectionless application layer protocol that is used to transfer files.
Refer to the exhibit. A technician has configured a user workstation with the IP address and default subnet masks that are shown. Although the user can access all local LAN resources, the user cannot access any Internet sites by using either FQDN or IP addresses. Based upon the exhibit, what could account for this failure?
The default gateway address in incorrect.
It will give 4 options about ping, the correct one is:
The PC2 will be able to ping 192.168.1.1*
The question is from where is the system image being loaded.
It will ask what is the issue. Answer is:
The user has to be in privileged EXEC mode to use that command.*
What are three characteristics of multicast transmission? (Choose three.)
A single packet can be sent to a group of hosts.*
Multicast messages map lower layer addresses to upper layer addresses.*
Multicast transmission can be used by routers to exchange routing information.*
At a minimum, which address is required on IPv6-enabled interfaces?
Which frame forwarding method receives the entire frame and performs a CRC check to detect errors before forwarding the frame?
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 this requirement?
Which statement best describes the operation of the File Transfer Protocol?
Which three IP addresses are private ? (Choose three.)
Which three IP addresses are private ? (Choose three.)
A network administrator needs to monitor network traffic to and from servers in a data center. Which features of an IP addressing scheme should be applied to these devices?
predictable static IP addresses for easier identification*
How many bits make up the single IPv6 hextet :10CD:?
Refer to the exhibit. The network administrator for a small advertising company has chosen to use the 192.168.5.96/27 network for internal LAN addressing. As shown in the exhibit, a static IP address is assigned to the company web server. However, the web server cannot access the Internet. The administrator verifies that local workstations with IP addresses that are assigned by a DHCP server can access the Internet, and the web server is able to ping local workstations. Which component is incorrectly configured?
default gateway address
A client is establishing a TCP session with a server. How is the acknowledgment number in the response segment to the client determined?
The acknowledgment number field is modified by adding 1 to the randomly chosen initial sequence number in response to the client.
The acknowledgment number is set to 11 to signify an acknowledgment packet and synchronization packet back to the client.
The acknowledgment number field uses a random source port number in response to the client.
The acknowledgment number is set to 1 to signify an acknowledgment packet back to the client.
Point-to-point communications where both devices can transmit and receive on the medium at the same time are known as
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