CIT 161 intro to networking - Module 8-10 Assessment
Refer to the exhibit. Match the packets with their destination IP address to the exiting interfaces on the router. (Not all targets are used.)
FastEthernet0/0 packets with destination of 172.17.6.15 FastEthernet0/1 packets with destination of 172.17.14.8 FastEthernet1/0 packets with destination of 172.17.12.10 FastEthernet1/1 packets with destination of 172.17.10.5 Serial0/0/0 packets with destination of 172.17.8.20 The packet is dropped. not used
When transporting data from real-time applications, such as streaming audio and video, which field in the IPv6 header can be used to inform the routers and switches to maintain the same path for the packets in the same conversation?
Flow label
Where are IPv4 address to Layer 2 Ethernet address mappings maintained on a host computer?
MAC address table
What are two potential network problems that can result from ARP operation? (Choose two.)
Multiple ARP replies result in the switch MAC address table containing entries that match the MAC addresses of hosts that are connected to the relevant switch port. On large networks with low bandwidth, multiple ARP broadcasts could cause data communication delays.
What IPv4 header field identifies the upper layer protocol carried in the packet?
Protocol
Match the command with the device mode at which the command is entered. (Not all options are used.)
R1(config)# service password-encryption R1> enable R1(config-router)# not used R1# copy running-config startup-config R1(config-line)# login R1(config-if)# The ip address 192.168.4.4 255.255.255.0
Open the PT activity. Perform the tasks in the activity instructions and then answer the question. Which interfaces in each router are active and operational?
R1: G0/0 and S0/0/0 R2: G0/1 and S0/0/0
What information does the loopback test provide?
The TCP/IP stack on the device is working correctly.
What will happen if the default gateway address is incorrectly configured on a host?
The host cannot communicate with hosts in other networks.
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 global configuration command ip default-gateway 172.16.100.1 is applied to a switch. What is the effect of this command?
The switch can be remotely managed from a host on another network.
PC1 has sent a frame addressed to PC3. What will the switch do with the frame?
The switch will forward the frame to all ports except port 4
How do hosts ensure that their packets are directed to the correct network destination?
They have to keep their own local routing table that contains a route to the loopback interface, a local network route, and a remote default route.
Which field in the IPv4 header is used to prevent a packet from traversing a network endlessly?
Time-to-Live
What is a basic characteristic of the IP protocol?
connectionless
What is one advantage that the IPv6 simplified header offers over IPv4?
efficient packet handling
Refer to the exhibit. PC1 attempts to connect to File_server1 and sends an ARP request to obtain a destination MAC address. Which MAC address will PC1 receive in the ARP reply?
the MAC address of the G0/0 interface on R1
What is the aim of an ARP spoofing attack?
to associate IP addresses to the wrong MAC address
What are two functions of NVRAM? (Choose two.)
to store the startup configuration file to retain contents when power is removed
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?
172.20.0.254
What statement describes the function of the Address Resolution Protocol?
ARP is used to discover the MAC address of any host on the local network.
Why is NAT not needed in IPv6?
Any host or user can get a public IPv6 network address because the number of available IPv6 addresses is extremely large.
What happens when the transport input ssh command is entered on the switch vty lines?
Communication between the switch and remote users is encrypted.
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 new network administrator has been asked to enter a banner message on a Cisco device. What is the fastest way a network administrator could test whether the banner is properly configured?
Exit privileged EXEC mode and press Enter .
Which destination address is used in an ARP request frame?
FFFF.FFFF.FFFF
10.27.15.17
RTR1(config)# interface gi0/1 RTR1(config-if)# description Connects to the Marketing LAN RTR1(config-if)# ip address 10.27.15.17 255.255.255.0 RTR1(config-if)# no shutdown RTR1(config-if)# interface gi0/0 RTR1(config-if)# description Connects to the Payroll LAN RTR1(config-if)# ip address 10.27.14.148 255.255.255.0 RTR1(config-if)# no shutdown RTR1(config-if)# interface s0/0/0 RTR1(config-if)# description Connects to the ISP RTR1(config-if)# ip address 10.14.15.254 255.255.255.0 RTR1(config-if)# no shutdown RTR1(config-if)# interface s0/0/1 RTR1(config-if)# description Connects to the Head Office WAN RTR1(config-if)# ip address 203.0.113.39 255.255.255.0 RTR1(config-if)# no shutdown RTR1(config-if)# end 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?
Match the commands to the correct actions. (Not all options are used.)
Router(config)# hostname CL1 configures a name on the router Router(config)# enable password Cisco not used Router(config-line)# password class provides security on the console Router(config)# password Cisco not used Router(config)# banner motd # displays a message when the router is accessed
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 computer has an invalid default gateway address.
What is the effect of using the Router# copy running-config startup-config command on a router? 21What is the effect of using the Router# copy running-config startup-config command on a router?
The contents of NVRAM will change.
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 describes the treatment of ARP requests on the local link?
They are received and processed by every device on the local network.
Which term describes a field in the IPv4 packet header that contains a unicast, multicast, or broadcast address?
destination IPv4 address
what important information is examined in the ethernet frame header buy a layer 2 device in order to forward the data onward
destination MAC address
Match the configuration mode with the command that is available in that mode. (Not all options are used.)
enable R1> copy running-config startup-config R1# login R1(config-line)# interface fastethernet 0/0 R1(config)#
Which three commands are used to set up secure access to a router through a connection to the console interface? (Choose three.)
login password cisco line console 0
Which two types of IPv6 messages are used in place of ARP for address resolution?
neighbor advertisement neighbor solicitation
Which two functions are primary functions of a router? (Choose two.)
packet forwarding path selection
Which term describes a field in the IPv4 packet header used to identify the next level protocol?
protocol
What routing table entry has a next hop address associated with a destination network?
remote routes
Which statement describes a feature of the IP protocol?
IP relies on upper layer services to handle situations of missing or out-of-order packets.
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.
