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WorksheetsIP Routing and Protocols Worksheet (Grade 13)
Total questions: 77
Worksheet time: 39mins
Which information is used by routers to forward a data packet toward its destination?
source IP address
destination IP address
source data-link address
destination data-link address
A computer has to send a packet to a destination host in the same LAN. How will the packet be sent?
The packet will be sent to the default gateway first, and then, depending on the response from the gateway, it may be sent to the destination host.
The packet will be sent directly to the destination host.
The packet will first be sent to the default gateway, and then from the default gateway it will be sent directly to the destination host.
The packet will be sent only to the default gateway.
A router receives a packet from the Gigabit 0/0 interface and determines that the packet needs to be forwarded out the Gigabit 0/1 interface. What will the router do next?
route the packet out the Gigabit 0/1 interface
create a new Layer 2 Ethernet frame to be sent to the destination
look into the ARP cache to determine the destination IP address
look into the routing table to determine if the destination network is in the routing table
Which IPv4 address can a host use to ping the loopback interface?
126.0.0.1
127.0.0.0
126.0.0.0
127.0.0.1
A computer can access devices on the same network but cannot access devices on other networks. What is the probable cause of this problem?
The cable is not connected properly to the NIC.
The computer has an invalid IP address.
The computer has an incorrect subnet mask.
The computer has an invalid default gateway address.
Which statement describes a feature of the IP protocol?
IP encapsulation is modified based on network media.
IP relies on Layer 2 protocols for transmission error control.
MAC addresses are used during the IP packet encapsulation.
IP relies on upper layer services to handle situations of missing or out-of-order packets.
Why is NAT not needed in IPv6?
Because IPv6 has integrated security, there is no need to hide the IPv6 addresses of internal networks.
Any host or user can get a public IPv6 network address because the number of available IPv6 addresses is extremely large.
The problems that are induced by NAT applications are solved because the IPv6 header improves packet handling by intermediate routers.
The end-to-end connectivity problems that are caused by NAT are solved because the number of routes increases with the number of nodes that are connected to the Internet.
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
the lower gateway IP address to get to the destination network
the higher metric value that is associated with the destination network
the higher gateway IP address to get to the destination network
What are two services provided by the OSI network layer? (Choose two.)
performing error detection
routing packets toward the destination
encapsulating PDUs from the transport layer
placement of frames on the media
collision detection
Within a production network, what is the purpose of configuring a switch with a default gateway address?
Hosts that are connected to the switch can use the switch default gateway address to forward packets to a remote destination.
A switch must have a default gateway to be accessible by Telnet and SSH.
The default gateway address is used to forward packets originating from the switch to remote networks.
It provides a next-hop address for all traffic that flows through the switch.
What is a basic characteristic of the IP protocol?
connectionless
media dependent
user data segmentation
reliable end-to-end delivery
Which field in the IPv4 header is used to prevent a packet from traversing a network endlessly?
Time-to-Live
Sequence Number
Acknowledgment Number
Differentiated Services
What is one advantage that the IPv6 simplified header offers over IPv4?
smaller-sized header
little requirement for processing checksums
smaller-sized source and destination IP addresses
efficient packet handling
What IPv4 header field identifies the upper layer protocol carried in the packet?
Protocol
Identification
Version
Differentiated Services
Based on the exhibit showing the router routing table and the network diagram with interfaces FastEthernet0/0, FastEthernet0/1, FastEthernet1/0, FastEthernet1/1, and Serial0/0/0, which interface will packets with destination of 172.17.6.15 exit?
FastEthernet0/0
FastEthernet0/1
FastEthernet1/0
FastEthernet1/1
Serial0/0/0
Based on the exhibit showing the router routing table and the network diagram with interfaces FastEthernet0/0, FastEthernet0/1, FastEthernet1/0, FastEthernet1/1, and Serial0/0/0, which interface will packets with destination of 172.17.14.8 exit?
FastEthernet0/0
FastEthernet0/1
FastEthernet1/0
FastEthernet1/1
Serial0/0/0
Based on the exhibit showing the router routing table and the network diagram with interfaces FastEthernet0/0, FastEthernet0/1, FastEthernet1/0, FastEthernet1/1, and Serial0/0/0, which interface will packets with destination of 172.17.12.10 exit?
FastEthernet0/0
FastEthernet0/1
FastEthernet1/0
FastEthernet1/1
Serial0/0/0
Based on the exhibit showing the router routing table and the network diagram with interfaces FastEthernet0/0, FastEthernet0/1, FastEthernet1/0, FastEthernet1/1, and Serial0/0/0, which interface will packets with destination of 172.17.10.5 exit?
FastEthernet0/0
FastEthernet0/1
FastEthernet1/0
FastEthernet1/1
Serial0/0/0
Based on the exhibit showing the router routing table and the network diagram with interfaces FastEthernet0/0, FastEthernet0/1, FastEthernet1/0, FastEthernet1/1, and Serial0/0/0, which interface will packets with destination of 172.17.8.20 exit?
FastEthernet0/0
FastEthernet0/1
FastEthernet1/0
FastEthernet1/1
Serial0/0/0
What information does the loopback test provide?
The TCP/IP stack on the device is working correctly.
The device has end-to-end connectivity.
What routing table entry has a next hop address associated with a destination network?
directly-connected routes
remote routes
How do hosts ensure that their packets are directed to the correct network destination?
They always direct their packets to the default gateway, which will be responsible for the packet delivery.
They search in their own local routing table for a route to the network destination address and pass this information to the default gateway.
What statement describes the function of the Address Resolution Protocol?
ARP is used to discover the IP address of any host on the local network.
ARP is used to discover the MAC address of any host on the local network.
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.
What important information is examined in the Ethernet frame header by a Layer 2 device in order to forward the data onward?
source MAC address
source IP address
destination MAC address
Ethernet type
destination IP address
Match the command to the action: Which command displays a message after accessing the router?
Router(config)# banner motd #
Router(config-line)# password class
Router(config)# hostname CL1
Match the command to the action: Which command provides security on the console?
Router(config-line)# password class
Router(config)# banner motd #
Router(config)# hostname CL1
Match the command to the action: Which command configures a name on the router?
Router(config)# hostname CL1
Router(config-line)# password class
Router(config)# banner motd #
A new network administrator has been asked to enter a banner message on a Cisco device. What is the fastest way to test whether the banner is properly configured?
Reboot the device.
Enter CTRL-Z at the privileged mode prompt.
Exit global configuration mode.
Power cycle the device.
Exit privileged EXEC mode and press Enter.
Match the description to the access method: Which remote access method uses encryption?
SSH
Telnet
console
AUX
Match the description to the access method: Which is the preferred out-of-band access method?
console
SSH
Telnet
AUX
Match the description to the access method: Which provides remote access via a dialup connection?
AUX
console
SSH
Telnet
Match the description to the access method: Which provides unsecure remote access?
Telnet
SSH
console
AUX
Match the phase to the function during the boot up process of a Cisco router: What happens in phase 1?
perform the POST and load the bootstrap program
locate and load the Cisco IOS software
locate and load the startup configuration file
Match the phase to the function during the boot up process of a Cisco router: What happens in phase 2?
locate and load the Cisco IOS software
perform the POST and load the bootstrap program
locate and load the startup configuration file
Match the phase to the function during the boot up process of a Cisco router: What happens in phase 3?
locate and load the startup configuration file
locate and load the Cisco IOS software
perform the POST and load the bootstrap program
Match the command with the device mode at which the command is entered: In which mode is the command service password-encryption entered?
R1(config)#
R1#
R1(config-line)#
R1(config-if)#
R1>
Match the command with the device mode at which the command is entered: In which mode is the command enable entered?
R1>
R1#
R1(config)#
R1(config-line)#
R1(config-if)#
Match the command with the device mode at which the command is entered: In which mode is the command copy running-config startup-config entered?
R1#
R1>
R1(config)#
R1(config-line)#
R1(config-if)#
Match the command with the device mode at which the command is entered: In which mode is the command login entered?
R1(config-line)#
R1>
R1#
R1(config)#
R1(config-if)#
Match the command with the device mode at which the command is entered: In which mode is the command ip address 192.168.4.4 255.255.255.0 entered?
R1(config-if)#
R1(config-line)#
R1>
R1#
R1(config)#
What are two functions of NVRAM? (Choose two.)
to store the routing table
to retain contents when power is removed
to store the startup configuration file
to contain the running configuration file
to store the ARP table
A router boots and enters setup mode. What is the reason for this?
The IOS image is corrupt.
Cisco IOS is missing from flash memory.
The configuration file is missing from NVRAM.
The POST process has detected hardware failure.
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 will have a management interface with the address 172.16.100.1.
The switch can be remotely managed from a host on another network.
The switch can communicate with other hosts on the 172.16.100.0 network.
The switch is limited to sending and receiving frames to and from the gateway 172.16.100.1.
What happens when the command transport input ssh is entered on the switch vty lines?
The SSH client on the switch is enabled.
Communication between the switch and remote users is encrypted.
The switch requires a username/password combination for remote access.
The switch requires remote connections via a proprietary client software.
Refer to the exhibit. A user PC has successfully transmitted packets to www.cisco.com. Which IP address does the user PC target in order to forward its data off the local network?
172.24.255.17
172.24.1.22
172.20.0.254
172.24.255.4
172.20.1.18
Match the configuration mode with the command that is available in that mode: Which command is available at the R1> prompt?
enable
copy running-config startup-config
login
interface fastethernet 0/0
Match the configuration mode with the command that is available in that mode: Which command is available at the R1# prompt?
copy running-config startup-config
enable
login
interface fastethernet 0/0
Match the configuration mode with the command that is available in that mode: Which command is available at the R1(config-line)# prompt?
login
copy running-config startup-config
enable
interface fastethernet 0/0
Match the configuration mode with the command that is available in that mode: Which command is available at the R1(config)# prompt?
interface fastethernet 0/0
login
copy running-config startup-config
enable
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 company to the Internet.
It is the IP address of the Router1 interface that connects the PC1 LAN to Router1.
It is the IP address of Switch1 that connects PC1 to other devices on the same LAN.
Which two functions are primary functions of a router? Choose two.
packet forwarding
path selection
What is the effect of using the Router# copy running-config startup-config command on a router?
The contents of NVRAM will change.
The contents of RAM will change.
What will happen if the default gateway address is incorrectly configured on a host?
The host cannot communicate with hosts in other networks.
The host cannot communicate with other hosts in the local network.
Refer to the exhibit. A network administrator is connecting a new host to the Payroll LAN. The host needs to communicate with remote networks. What IP address would be configured as the default gateway on the new host?
10.27.14.148
10.27.14.1
10.14.15.254
203.0.113.39
10.27.15.17
Which term describes a field in the IPv4 packet header that contains a unicast, multicast, or broadcast address?
destination IPv4 address
protocol
TTL
header checksum
Which term describes a field in the IPv4 packet header used to limit the lifetime of a packet?
TTL
source IPv4 address
protocol
header checksum
Which term describes a field in the IPv4 packet header that contains a 4-bit binary value set to 0100?
version
source IPv4 address
protocol
TTL
Which term describes a field in the IPv4 packet header used to identify the next level protocol?
protocol
version
differentiated services
header checksum
Which term describes a field in the IPv4 packet header that contains a 4-bit binary value set to 0100?
version
differentiated services
header checksum
TTL
What property of ARP causes cached IP-to-MAC mappings to remain in memory longer?
Entries in an ARP table are time-stamped and are purged after the timeout expires.
A static IP-to-MAC address entry can be entered manually into an ARP table.
The type field 0x806 appears in the header of the Ethernet frame.
The port-to-MAC address table on a switch has the same entries as the ARP table on the switch.
What property of ARP allows MAC addresses of frequently used servers to be fixed in the ARP table?
A static IP-to-MAC address entry can be entered manually into an ARP table.
Entries in an ARP table are time-stamped and are purged after the timeout expires.
The type field 0x806 appears in the header of the Ethernet frame.
The port-to-MAC address table on a switch has the same entries as the ARP table on the switch.
What property of ARP allows MAC addresses of frequently used servers to be fixed in the ARP table?
A static IP-to-MAC address entry can be entered manually into an ARP table.
The destination MAC address FF-FF-FF-FF-FF-FF appears in the header of the Ethernet frame.
What property of ARP allows hosts on a LAN to send traffic to remote networks?
Local hosts learn the MAC address of the default gateway.
The destination MAC address FF-FF-FF-FF-FF-FF appears in the header of the Ethernet frame.
The source MAC address appears in the header of the Ethernet frame.
The port-to-MAC address table on a switch has the same entries as the ARP table on the switch.
Refer to the exhibit. A network administrator is connecting a new host to the Registrar LAN. The host needs to communicate with remote networks. What IP address would be configured as the default gateway on the new host?
192.168.235.234
192.168.235.1
10.234.235.254
203.0.113.3
192.168.234.114
What property of ARP forces all Ethernet NICs to process an ARP request?
The destination MAC address FF-FF-FF-FF-FF-FF appears in the header of the Ethernet frame.
The source MAC address appears in the header of the Ethernet frame.
The type field 0x806 appears in the header of the Ethernet frame.
ARP replies are broadcast on the network when a host receives an ARP request.
What property of ARP causes a reply only to the source sending an ARP request?
The source MAC address appears in the header of the Ethernet frame.
The destination MAC address FF-FF-FF-FF-FF-FF appears in the header of the Ethernet frame.
The type field 0x806 appears in the header of the Ethernet frame.
ARP replies are broadcast on the network when a host receives an ARP request.
What property of ARP causes the request to be flooded out all ports of a switch except for the port receiving the ARP request?
The destination MAC address FF-FF-FF-FF-FF-FF appears in the header of the Ethernet frame.
The type field 0x806 appears in the header of the Ethernet frame.
Entries in an ARP table are time-stamped and are purged after the timeout expires.
ARP replies are broadcast on the network when a host receives an ARP request.
What property of ARP causes the NICs receiving an ARP request to pass the data portion of the Ethernet frame to the ARP process?
The type field 0x806 appears in the header of the Ethernet frame.
The destination MAC address FF-FF-FF-FF-FF-FF appears in the header of the Ethernet frame.
Entries in an ARP table are time-stamped and are purged after the timeout expires.
What property of ARP causes the NICs receiving an ARP request to pass the data portion of the Ethernet frame to the ARP process?
The type field 0x806 appears in the header of the Ethernet frame.
The destination MAC address FF-FF-FF-FF-FF-FF appears in the header of the Ethernet frame.
Entries in an ARP table are time-stamped and are purged after the timeout expires.
The port-to-MAC address table on a switch has the same entries as the ARP table on the switch.
Refer to the exhibit. A network administrator is connecting a new host to the Service LAN. The host needs to communicate with remote networks. What IP address would be configured as the default gateway on the new host?
172.29.157.156
172.29.157.1
Refer to the exhibit. A network administrator is connecting a new host to the Medical LAN. The host needs to communicate with remote networks. What IP address would be configured as the default gateway on the new host?
192.168.191.189
192.168.191.1
10.190.191.254
198.51.100.213
192.168.190.70
Refer to the exhibit. A network administrator is connecting a new host to the Registrar LAN. The host needs to communicate with remote networks. What IP address would be configured as the default gateway on the new host?
192.168.225.223
192.168.225.1
10.224.225.254
203.0.113.246
192.168.224.103
Refer to the exhibit. A network administrator is connecting a new host to the Manager LAN. The host needs to communicate with remote networks. What IP address would be configured as the default gateway on the new host?
10.118.62.196
10.118.62.1
10.62.63.254
209.165.200.87
10.118.63.65
Refer to the exhibit. A network administrator is connecting a new host to the Store LAN. The host needs to communicate with remote networks. What IP address would be configured as the default gateway on the new host?
172.19.98.230
172.19.98.1
10.98.99.254
209.165.200.120
172.19.99.99
Refer to the exhibit. A network administrator is connecting a new host to the Store LAN. The host needs to communicate with remote networks. What IP address would be configured as the default gateway on the new host?
172.20.132.13
172.20.132.1
10.132.133.254
198.51.100.156
172.20.133.132
Refer to the exhibit. A network administrator is connecting a new host to the Service LAN. The host needs to communicate with remote networks. What IP address would be configured as the default gateway on the new host?
192.168.167.166
192.168.167.1
10.166.167.254
198.51.100.189
192.168.166.46
