640-816 - ICND2 - Interconnecting Cisco Networking Devices Part 2
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Which two data integrity algorithms are commonly used in VPN solutions? (Choose two.)
A network administrator needs to configure a serial link between the main office and a remote location. The router at the remote office is a non-Cisco router. How should the network administrator configure the serial interface of the main office router to make the connection?
Main(config)# interface serial 0/0 Main(config-if)# ip address 172.16.1.1 255.255.255.252 Main(config-if)# encapsulation ppp Main(config-if)# no shut
Which three of these statements regarding 802.1Q trunking are correct? (Choose three.)
802.1Q native VLAN frames are untagged by default.
802.1Q trunks can use 10 Mb/s Ethernet interfaces.
802.1Q trunks should have native VLANs that are the same at both ends.
When are packets processed by an inbound access list?
before they are routed to an outbound interface
A network administrator needs to configure port security on a switch. Which two statements are true? (Choose two.)
When dynamic MAC address learning is enabled on an interface, the switch can learn new addresses, up to the maximum defined.
The sticky learning feature allows the addition of dynamically learned addresses to the running configuration.
What are two drawbacks of implementing a link-state routing protocol? (Choose two.)
the requirement for a hierarchical IP addressing scheme for optimal functionality
the high demand on router resources to run the link-state routing algorithm
Which command can be used to verify the DLCI destination address in a Frame Relay static configuration?
show frame-relay map
Which protocol provides a method of sharing VLAN configuration information between switches?
Which two statements about static NAT translations are true? (Choose two.)
They allow connections to be initiated from the outside.
They are always present in the NAT table.
Which two statistics appear in show frame-relay map output? (Choose two.)
the value of the local DLCI
the status of the PVC that is configured on the router
Which routing protocol by default uses bandwidth and delay as metrics?
A department decides to replace its hub with a Catalyst 2950 switch that is no longer needed by another department. To prepare the switch for installation, the network administrator has erased the startup configuration and reloaded the switch. However, PCs that are connected to the switch experience various connectivity problems. What is a possible cause of the problem?
The VLAN database was not erased.
Which of these represents an IPv6 link-local address?
Which of the following describe the process identifier that is used to run OSPF on a router? (Choose two)
It is locally significant.
It is needed to identify a unique instance of an OSPF database.
Which parameter or parameters are used to calculate OSPF cost in Cisco routers?
VLAN 3 is not yet configured on your switch. What happens if you set the switchport access vlan 3 command in interface configuration mode?
The command is accepted and the respective VLAN is added to vlan.dat.
When you are troubleshooting an ACL issue on a router, which command can help you to verify which interfaces are affected by the ACL?
show ip interface
Which command is used to display the collection of OSPF link states?
show ip ospf database
Which IPv6 address is the equivalent of the IPv4 interface loopback address 127.0.0.1?
Which IPsec security protocol should be used when confidentiality is required?
Which command is necessary to permit SSH or Telnet access to a Cisco switch that is otherwise configured for these vty line protocols?
transport input all
What are two characteristics of Frame Relay point-to-point subinterfaces? (Choose two.)
They require a unique subnet within a routing domain.
They emulate leased lines.
Select the action that results from executing these commands. Switch(config-if)# switchport port-security Switch(config-if)# switchport port-security mac-address sticky
A dynamically learned MAC address is saved in the running-configuration file.
At which layer of the OSI model is RSTP used to prevent loops?
The output of the show frame-relay pvc command shows "PVC STATUS = INACTIVE". What does this mean?
The PVC is configured correctly on the local switch, but there is a problem on the remote end of the PVC.
A network administrator has configured access list 173 to prevent Telnet and ICMP traffic from reaching a server with the address of 192.168.13.26. Which commands can the administrator issue to verify that the access list is working properly? (Choose three.)
Router# ping 192.168.13.26
Router# show access-lists
Router# show ip interface
A router is running three routing processes: RIP, OSPF, and EIGRP, each configured with default characteristics. Each process learns a route to the same remote network. If there are no static routes to the destination and none of the routes were redistributed, which route will be placed in the IP routing table?
the route learned through EIGRP
Which command helps a network administrator to manage memory by displaying flash memory and NVRAM utilization?
show file systems
A network administrator receives an error message while trying to configure the Ethernet interface of a router with IP address 10.24.24.24/29. Which statement explains the reason for this issue?
This address is a network address.
Which characteristics are representative of a link-state routing protocol? (Choose three)
Provides common view of entire topology
Calculates shortest path
Utilizes event-triggered updates
In which circumstance are multiple copies of the same unicast frame likely to be transmitted in a switched LAN?
in an improperly implemented redundant topology
Workstation A has been assigned an IP address of 192.0.2.24/28. Workstation B has been assigned an IP address of 192.0.2.100/28. The two workstations are connected with a straight- through cable. Attempts to ping between the hosts are unsuccessful. What are two things that could be attempted that would allow communications between the hosts? (Choose two.)
Replace the straight-through cable with a crossover cable.
Change the subnet mask of the hosts to /25.
Which router command can be used to verify the type of cable connected to interface serial 0/0?
show controllers serial 0/0
What can be done to Frame Relay to resolve split-horizon issues? (Choose two.)
Create a full-mesh topology.
Configure point-to-point subinterfaces.
A Cisco router that was providing Frame Relay connectivity at a remote site was replaced with a different vendor's frame relay router. Connectivity is now down between the central and remote site. What is the most likely cause of the problem?
mismatched encapsulation types
A company with 25 computers decides to connect its network to the Internet. The company would like for all of the computers to have access to the Internet at the same time, but the company only has four usable public IP addresses. What should be configured on the router so that all computers can connect to the Internet simultaneously?
dynamic NAT with overload
If all OSPF routers in a single area are configured with the same priority value, what value does a router use for the OSPF router ID in the absence of a loopback interface?
the highest IP address among its active interfaces
A switch is configured with all ports assigned to vlan 2 with full duplex FastEthernet to segment existing departmental traffic. What is the effect of adding switch ports to a new VLAN on the switch?
An additional broadcast domain will be created.
A network administrator must configure 200 switch ports to accept traffic from only the currently attached host devices. What would be the most efficient way to configure MAC-level security on all these ports?
Use the switchport port-security MAC address sticky command on all the switch ports that have end devices connected to them.
How does using the service password-encryption command on a router provide additional security?
by encrypting passwords in the plain text configuration file
Which form of NAT maps multiple private IP addresses to a single registered IP address by using different ports?
You are working in a data center environment and are assigned the address range 10.188.31.0/23. You are asked to develop an IP addressing plan to allow the maximum number of subnets with as many as 30 hosts each. Which IP address range meets these requirements?
What does a router do if it has no EIGRP feasible successor route to a destination network and the successor route to that destination network is in active status?
It sends a multicast query packet to all adjacent neighbors requesting available routing paths to the destination network.
You have been asked to come up with a subnet mask that will allow all three web servers to be on the same network while providing the maximum number of subnets. Which network address and subnet mask meet this requirement?
Which two privileged mode Cisco IOS commands can be used to determine a Cisco router chassis serial number? (Choose two.)
On which options are standard access lists based?
source address and wildcard mask
Which address is the IPv6 all-RIP-routers multicast group address that is used by RIPng as the destination address for RIP updates?
Which two Cisco IOS commands, used in troubleshooting, can enable debug output to a remote location? (Choose two.)
logging host ip-address
Which command is used to enable CHAP authentication, with PAP as the fallback method, on a serial interface?
Router(config-if)# ppp authentication chap pap
Which two of these statements are true of IPv6 address representation? (Choose two.)
A single interface may be assigned multiple IPv6 addresses of any type.
Every IPv6 interface contains at least one loopback address