CCNA 1 Exam 3 modules 8-10 part 1
The ARP cache is cleared.
A network technician issues the arp -d * command on a PC after the router that is connected to the LAN is reconfigured. What is the result after this command is issued?
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.
How do hosts ensure that their packets are directed to the correct network destination?
R1(config-line)# ---->login R!# ------> copy running-config startup-config R1> ------>enable R1(config)# -------> interface fastethernet 0/0 Explanation: The enable command is entered at the R1> prompt. The login command is entered at the R1(config-line)# prompt. The copy running-config startup-config command is entered at the R1# prompt. The interface fastethernet 0/0 command is entered at the R1(config)# prompt.
Match the configuration mode with the command that is available in that mode. (Not all options are used.)
R1: G0/0 and S0/0/0R2: G0/1 and S0/0/0
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?
It is the IP address of the Router1 interface that connects the PC1 LAN to Router1.
Refer to the exhibit. Consider the IP address configuration shown from PC1. What is a description of the default gateway address?
the MAC address of the G0/0 interface on R1
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?
packet forwarding path selection
Which two functions are primary functions of a router? (Choose two.)
neighbor solicitation neighbor advertisement
Which two types of IPv6 messages are used in place of ARP for address resolution?
header checksum
Which term describes a field in the IPv4 packet header used to detect corruption in the IPv4 header?
to associate IP addresses to the wrong MAC address
What is the aim of an ARP spoofing attack?
The contents of NVRAM will change.
What is the effect of using the Router# copy running-config startup-config command on a router?
FFFF.FFFF.FFFF
Which destination address is used in an ARP request frame?
The switch will forward the frame to all ports except port 4.
Refer to the exhibit. The exhibit shows a small switched network and the contents of the MAC address table of the switch. PC1 has sent a frame addressed to PC3. What will the switch do with the frame?
On large networks with low bandwidth, multiple ARP broadcasts could cause data communication delays. Network attackers could manipulate MAC address and IP address mappings in ARP messages with the intent of intercepting network traffic.
What are two potential network problems that can result from ARP operation? (Choose two.)
connectionless
What is a basic characteristic of the IP protocol?
efficient packet handling
What is one advantage that the IPv6 simplified header offers over IPv4?
remote routes
What routing table entry has a next hop address associated with a destination network?
the host cannot communicate with hosts in other networks.
What will happen if the default gateway address is incorrectly configured on a host?
ARP cache
Where are IPv4 address to Layer 2 Ethernet address mappings maintained on a host computer?
Time-to-Live
Which field in the IPv4 header is used to prevent a packet from traversing a network endlessly?
They are received and processed by every device on the local network.
Which statement describes the treatment of ARP requests on the local link?
source IPv4 address
Which term describes a field in the IPv4 packet header that contains a 32-bit binary value associated with an interface on the sending device?
differentiated services
Which term describes a field in the IPv4 packet header that contains an 8-bit binary value used to determine the priority of each packet?
protocol
Which term describes a field in the IPv4 packet header used to identify the next level protocol?
line console 0 login password cisco
Which three commands are used to set up secure access to a router through a connection to the console interface? (Choose three.)