CIS 307 Network Telecommunications Midterm
What is the subnet address for the address 2001:DB8:BC15:A:12AB::1/64?
2001:DB8:BC15:A::0
Fill in the blank. Use a number. IPv4 multicast addresses are directly mapped to IEEE 802 (Ethernet) MAC addresses using the last _______ of the 28 available bits in the IPv4 multicast group address.
4
Which statement best describes the operation of the File Transfer Protocol?
An FTP server uses a source port number of 20 and a randomly generated destination port number during the establishment of control traffic with an FTP client.
Which keys act as a hot key combination that is used to interrupt an IOS process?
Ctrl-Shift-6
Which field in an IPv4 packet header will typically stay the same during its transmission?
Destination Address
During normal operation, from which location do most Cisco switches and routers run the IOS?
RAM
Refer to the exhibit. Which IP addressing scheme should be changed?
Site 2
Which function is provided by TCP?
detection of missing packets
What function does pressing the Tab key have when entering a command in IOS?
it completes the remainder of a partially typed word in a command
Which statement describes a characteristic of the network layer in the OSI model?
its protocols specify the packet structure and processing used to carry data from one host to another
Refer to the exhibit. A ping to PC2 is issued from PC0, PC1, and PC3 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 two notations are useable nibble boundaries when subnetting in IPv6? (Choose two.)
-/64 -/68
Which three IP addresses are private ? (Choose three.)
-10.172.168.1 -172.20.4.4 -192.168.5.254
Which three IP addresses are private ? (Choose three.)
-10.20.30.1 -172.30.5.3 -192.168.5.5
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 of 224.0.0.0 to 224.0.0.255.
What three application layer protocols are part of the TCP/IP protocol suite? (Choose three.)
-DHCP -DNS -FTP
Which two components are configured via software in order for a PC to participate in a network environment? (Choose two.)
-IP address -subnet mask
How could a faulty network device create a source of hazard for a user? (Choose two.)
-It could stop functioning -it could explode
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 data -TCP is a connection-oriented protocol. UDP is a connectionless protocol
Which two services or protocols use the preferred UDP protocol for fast transmission and low overhead? (Choose two)
-VoIP -DNS
Which statement describes a characteristic of the Cisco router management ports?
-a console port is not used for packet forwarding
A network administrator is enabling services on a newly installed server. Which two statements describe how services are used on a server? (Choose two.)
-a port is considered to be open when it has an active server application that is assigned to it -server security can be improved by closing ports that are associated with unused services
Which two tasks are functions of the presentation layer?
-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 two examples of the cut-through switching method? (Choose two.)
-fast-forward switching -fragment-free switching
What are two features of ARP? (Choose two.)
-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
Which statement describes the sequence of processes executed by a router when it receives a packet from a host to be delivered to a host on another network?
-it de-encapsulates the packet, selects the appropriate path, and encapsulates the packet to forward it toward the destination host
Which two reasons generally make DHCP the preferred method of assigning IP addresses to hosts on large networks? (Choose two.)
-it eliminates most address configuration errors -it reduces the burden on network support staff
What are three important considerations when planning the structure of an IP addressing scheme? (Choose three.)
-preventing duplication of addresses -providing and controlling access -conserving addresses
What are the two main components of Cisco Express Forwarding (CEF)? (Choose two.)
-routing tables -ARP tables
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
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
Which two components are necessary for a wireless client to be installed on a WLAN? (Choose two.)
-wireless NIC -wireless client software
In a network that uses IPv4, what prefix would best fit a subnet containing 100 hosts?
/25
A network administrator requires access to manage routers and switches locally and remotely. Match the description to the access method. (Not all options are used.)
1. remote access method that uses encryption 2. preferred out-of-band access method 3. <not used> 4. remote access via a dialup connection 5. unsecure remote access
A network administrator is variably subnetting a given block of IPv4 addresses. Which combination of network addresses and prefix lengths will make the most efficient use of addresses when the need is for 2 subnets capable of supporting 10 hosts and 1 subnet that can support 6 hosts?
10.1.1.128/28 10.1.1.144/28 10.1.1.160/29********
What is the binary representation of 0xCA?
11001010
Refer to the exhibit. What is the maximum TIL value that is used to reach the destination www.cisco.com?
13
Refer to the exhibit. What is the maximum TTL value that is used to reach the destination www.cisco.com?
13
Refer to the exhibit. An administrator must send a message to everyone on the router A network. What is the broadcast address for network 172.16.16.0/22?
172.16.19.255
What is the valid most compressed format possible of the IPv6 address 2001:0DB8:0000:AB00:0000:0000:0000:1234?
2001:DB8:0:AB00::1234
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
What is the dotted decimal representation of the IPv4 address 11001011.00000000.01110001.11010011?
203.0.113.211
What is the metric value that is used to reach the 10.1.1.0 network in the following routing table entry? D 10.1.1.0/24 [90/2170112] via 209.165.200.226, 00:00:05, Serial0/0/0
2170112
Given the binary address of 11101100 00010001 00001100 00001010, which address does this represent in dotted decimal format?
236.17.12.10
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?
306
How many additional bits should be borrowed from a /26 subnet mask in order to create subnets for WAN links that need only 2 useable addresses?
4
How many bits would need to be borrowed if a network admin were given the IP addressing scheme of 172.16.0.0/16 and needed no more than 16 subnet with equal number of hosts?
4
What is the protocol that is used to discover a physical address from a known logical address and what message type does it use?
ARP, broadcast
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.
Refer to the exhibit. The administrator configured the access to the console and the vty lines of a router. Which conclusion can be drawn from this configuration?
Because the IOS includes the login command on the vty lines by default, access to the device via Telnet will require authentication.
What must be configured to enable Cisco Express Forwarding (CEF) on most Cisco devices that perform Layer 3 switching?
CEF is enabled by default, so no configuration is necessary
What method is used to manage contention-based access on a wireless network?
CSMA/CA
To what legacy address class does the address 10.0.0.0 belong?
Class A
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?
DHCPOFFER
What is a characteristic of DNS?
DNS servers can cache recent queries to reduce DNS query traffic
Which statement is true regarding the UDP client process during a session with a server?
Datagrams that arrive in a different order than that in which they were sent are not placed in order
Which group of IPv6 addresses cannot be allocated as a host source address?
FF00::/8
Which destination address is used in an ARP request frame?
FFFF.FFFF.FFFF
What is the correct order for PDU encapsulation?
Frame Header --> Network Header --> Transport Header --> Data --> Frame Trailer
What field content is used by ICMPv6 to determine that a packet has expired?
Hop Limit field
A user gets an IP address of 192.168.0.1 from the company network administrator. A friend of the user at a different company gets the same IP address on another PC. How can two PCs use the same IP address and still reach the Internet, send and receive email, and search the web?
ISPs use Network Address Translation to change a user IP address into an address that can be used on the Internet
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
Match the IPv6 address to the IPv6 address type. (Not all options are used.)
Link-Local: (a.) FE80:0:56BA:FFEE:A0B4:47FF:FE36:532B (b.) FE80::1 Multicast: (a.) FF02::2 (b.) FF02::1:FF3A:25C9 Global Unicast: (a.) 2001:DB8:10::12 (b.) 2001:DB8:A1:0B:C78::1
Which address on a PC does not change, even if the PC is moved to a different network?
MAC address
Fill in the blank. Network devices come in two physical configurations. Devices that have expansion slots that provide the flexibility to add new modules have a __________ configuration.
Modular
Fill in the blank: 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.
Multicast
Which technology provides a solution to IPv4 address depletion by allowing multiple devices to share one public IP address?
NAT
In which default order will a router search for startup configuration information?
NVRAM, TFTP, setup mode
Refer to the exhibit. Which action will be successful?
PC2 can send a ping to 192.168.1.1
Match each characteristic to the appropriate email protocol. (Not all options are used.)
POP: does not require a centralized backup solution, mail is deleted as it is downloaded, desirable for an ISP or large business IMAP: downloads copies of email messages to the client, original messages must be manually deleted, requires a larger amount of disk space
Which method of IPv6 prefix assignment relies on the prefix contained in RA messages?
SLAAC
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.
What will happen if the default gateway address is incorrectly configured on a host?
The host cannot communicate with hosts in other networks
Match the description with the associated IOS mode. (Not all options are used.)
User EXEC mode: limited number of basic monitoring commands, the first entrance into the CLI of an IOS device Privileged EXED 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 whole, accessed by entering the "configure terminal" command
Which type of wireless security is easily compromised?
WEP
Which type of wireless security generates dynamic encryption keys each time a client associates with an AP?
WPA
Which type of wireless security makes use of dynamic encryption keys each time a client associates with an AP?
WPA
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
What device is commonly used to verify a UTP cable?
a cable tester
Which statement is true about an interface that is configured with the IPv6 address command?
a link-local IPv6 address is automatically configured on the interface
What does a router use to determine where to send data it receives from the network?
a routing table
What type of communication rule would best describe CSMA/CD?
access method
Which router interface should be used for direct remote access to the router via a modem?
an AUX port
A technician is configuring a router to allow for all forms of management access. As part of each different type of access, the technician is trying to type the command login. Which configuration mode should be entered to do this task?
any line configuration mode
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
Why does HTTP use TCP as the transport layer protocol?
because HTTP requires reliable delivery
What is a characteristic of UTP cabling?
cancellation
What is the auto-MDIX feature on a switch?
crossover Ethernet cable connection
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
Fill in the blank: To prevent faulty network devices from carrying dangerous voltage levels, equipment must be ________ correctly
grounded
A particular telnet site 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?
ipconfig/displaydns
Which statement describes data throughput?
it is the measure of the bits transferred across the media over a given period of time
What action does a DHCPv4 client take if it receives more than one DHCPOFFER from multiple DHCP servers?
it sends a DHCPREQUEST that identifies which lease offer the client is accepting
An administrator issued the service password-encryption command to apply encryption to the passwords configured for enable password, vty, and console lines. What will be the consequences if the administrator later issues the no service password-encryption command?
it will not reverse any encryption
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?
lineconin
At a minimum, which address is required on IPv6-enabled interfaces?
link-local
What type of IPv6 address is FE80::1?
link-local
A _________ topology influences the type of network framing and media access control that will be used.
logical
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
What type of communication medium is used with a wireless LAN connection?
microwave
There was also a question about if you activated service password encryption in the past and you prompt "no service password encryption" what password are modified ?
no password at all
Refer to the exhibit. A network administrator is configuring access control to switch SW1. If the administrator has already logged into a Telnet session on the switch, which password is needed to access privileged EXEC mode?
secretin
Which firewall technique blocks incoming packets unless they are responses to internal requests?
stateful packet inspection
Which frame forwarding method receives the entire frame and performs a CRC check to detect errors before forwarding the frame?
store-and-forward switching
Refer to the exhibit. It will give 4 options about ping, the correct one is:
the PC2 will be able to ping 192.168.1.1
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
What is a possible hazard that can be caused by network cables in a fire?
the cable insulation could be flammable
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 one of the web browsers. Which information is used by the TCP/IP protocol stack in the PC to identify the destination web browser?
the destination port number
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. Router R1 has two interfaces that were configured with correct IP addresses and subnet masks. Why does the show ip route command output not display any information about the directly connected networks??
the no shutdown command was not issued on these interfaces
Which statement is true about variable-length subnet masking?
the size of each subnet may be different, depending on the requirements
What happens when part of an Internet television transmission is not delivered to the destination?
the transmission continues without the missing portion
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
What is the primary reason to subnet IPv6 prefixes?
to create a hierarchical Layer 3 network design
What is the effect of configuring the ipv6 unicast-routing command on a router?
to enable the router as an IPv6 router
Why does layer 3 device perform the ANDing process on a destination IP and subnet Mask?
to identify network address of destination host
Why does a Layer 3 device perform the ANDing process on a destination IP address and subnet mask?
to identify the network address of the destination network
What is the purpose of adjacency tables as used in Cisco Express Forwarding (CEF)?
to maintain Layer 2 next-hop addresses
What is the purpose of the network security authentication function?
to require users to prove who they are
A network technician is investigating network connectivity from a PC to a remote host with the address 10.1.1.5. Which command issued on the PC will return to the technician the complete path to the remote host?
tracert 10.1.1.5
Open the PT activity. Perform the tasks in the activity instructions and then fill in the blank. The Server0 message is "__________"
winner
What needs to be checked when testing a UTP network cable?
wire map
Which IPv4 address can be pinged to test the internal TCP/IP operation of a host?
127.0.0.1
Refer to the exhibit. What is the maximum TTL value that is used to reach the destination www.cisco.com??
13
How many bits make up the single IPv6 hextet :10CD:?
16
Which subnet would include the address 192.168.1.96 as a usable host address?
192.168.1.64/26
On which switch interface would an administrator configure an IP address so that the switch can be managed remotely?
VLAN 1
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?
WAN
Which WLAN security protocol generates a new dynamic key each time a client establishes a connection with the AP?
WPA
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?
DSL
During normal operation, from which location do most Cisco routers run the IOS?
RAM
Which protocol supports rapid delivery of streaming media?
Real-Time Transport Protocol
Which publicly available resources describe protocols, processes, and technologies for the Internet but do not give implementation details?
Request for Comments
Fill in the blank: Point-to-point communications where both devices can transmit and receive on the medium at the same time are known as ___________
full-duplex
What information does the loopback test provide?
if the TCP/IP stack on the device is working correctly
Which communication tool allows real-time collaboration?
instant messaging
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?
ipconfig /displaydns
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 allowing multiple Layer 3 protocols to use the same network interface and media
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
Why would a network administrator use the tracert utility?
to identify where a packet was lost or delayed on a network
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
What is the purpose of the network security accounting function?
to keep track of the actions of a user
What is the purpose of ICMP messages?
to provide feedback of IP packet transmissions
What is the purpose of having a converged network?
to reduce the cost of deploying and maintaining the communication infrastructure
What is the purpose of the routing process?
to select the paths that are used to direct traffic to destination networks
A company has a network address of 192.168.1.64 with a subnet mask of 255.255.255.192. The company wants to create two subnetworks that would contain 10 hosts and 18 hosts respectively. Which two networks would achieve that? (Choose two.)
-192.168.1.64/27 -192.168.1.96/28
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? (Choose two.)
-DHCPDISCOVER -DHCPREQUEST
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.)
-ICMP -IP
Which two statements correctly describe a router memory type and its contents? (Choose two.)
-RAM is volatile and stores the running configuration -ROM is nonvolatile and stores bootup information
What two preconfigured settings that affect security are found on most new wireless routers? (Choose two.)
-broadcast SSID -default administrator password
Which characteristics describe fiber optic cable? (Choose two.)
-it is not affected by EMI or RFI -It is the most expensive type of LAN cabling
What are two features of a physical, star network topology? (Choose two.)
-it is straightforward to troubleshoot -it is easy to add and remove end devices
Which two statements describe the functions or characteristics of ROM in a router? (Choose two.)
-maintains instructions for POST diagnostics -stores bootstrap program
Which of the following are primary functions of a router? (Choose two.)
-packet switching -path selection
A host is accessing an FTP server on a remote network. Which three functions are performed by intermediary network devices during this conversation? (Choose three.)
-regenerating data signals -applying security setting to control the flow of data -notifying other devices when errors occur
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
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.)
-regenerating data signals -applying security settings to control the flow of data -notifying other devices when errors occur
A network technician is measuring the transfer of bits across the company backbone for a mission critical application. The technician 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
Consider the following range of addresses: 2001:0DB8:BC15:00A0:0000:: 2001:0DB8:BC15:00A1:0000:: 2001:0DB8:BC15:00A2:0000:: ... 2001:0DB8:BC15:00AF:000:: The prefix-length for the range of addresses is
/60
Refer to the exhibit. 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?
192.168.11.252
What is an important function of the physical layer of the OSI model?
It encodes frames into electrical, optical, or radio wave signals
Match the phases to their correct stage in the router bootup process. (Not all options are used.)
Stage 1 - perform the post Stage 2 - load the bootstrap program Stage 3 - Locate and load the Cisco IOS Stage 4 - locate and load the configuration file
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? Switch (config)# hostname My Switch
Switch(config)#?
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?? Switch(config)# hostname HR Switch
Switch(config)#?
Fill in the blank: ___________ is a best-effort, connectionless application layer protocol that is used to transfer files.
TFTP
An administrator is trying to configure the switch but receives the error message that is displayed in the exhibit. What is the problem? Switch1> config t ^ Invalid input detected at "^" marker.
The administrator must first enter privileged EXEC mode before issuing the command
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
Which connection provides a secure CLI session with encryption to a Cisco network device?
an SSH connection
Which connection provides a secure CLI session with encryption to a Cisco switch?
an SSH connection
Refer to the exhibit. Which area would most likely be an extranet for the company network that is shown?
area C
On a school network, students are surfing the web, searching the library database, and attending an audio conference with their sister school in Japan. If network traffic is prioritized with QoS, how will the traffic be classified from highest priority to lowest priority?
audio conference, database, HTTP
Three office workers 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 office workers 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 is contained in the trailer of a data-link frame?
error detection
Which switching method has the lowest level of latency?
fast-forward
From which location did this router load the IOS? System image file is "flash:c1841-advipservicesk9-mz.124-15.T1.bin"
flash memory
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? Enter configuration commands, one per line/ End with CNTL/Z. SW1(config)# enable password letmein SW1(config)# login SW1(config)# line console 0 SW1(config)# password lineconin SW1(config-line)# login SW1(config-line)# exit SW1(config)# line vty 0 15 SW1 (config-line)# password linewtyin SW1(config-line)# login SW1(config-line)# end
linevtyin
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
What types of addresses make up the majority of addresses within the /8 block IPv4 bit space?
public addresses
Which device should be used for enabling a host to communicate with another host on a different network?
router
A technician uses the ping 127.0.0.1 command. What is the technician testing?
the TCP/IP stack on a network host
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
A network administrator is making changes to the configuration of a router. After making the changes and verifying the results, the administrator issues the copy running-config startup-config command. What will happen after this command executes?
the configuration will load when the router is restarted
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 is incorrect
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
After making configuration changes on a Cisco switch, a 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
What happens when a switch receives a frame and the calculated CRC value is different than the value that is in the FCS field?
the switch drops the frame
What happens when part of an Internet VoIP transmission is not delivered to the destination?
the transmission continues without the missing portion
What happens when part of an Internet radio transmission is not delivered to the destination?
the transmission continues without the missing portion
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 procedure is used to reduce the effect of crosstalk in copper cables?
twisting opposing circuit wire pairs together
When is a dial-up connection used to connect to an ISP?
when a regular telephone line is used
