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RSE CCNA 2 Chapter 1 Quiz Answers 2018 2019
What is the purpose of a routing protocol?
- It is used to build and maintain ARP tables.
- It provides a method for segmenting and reassembling data packets.
- It allows an administrator to devise an addressing scheme for the network.
- It allows a router to share information about known networks with other routers.
- It provides a procedure for encoding and decoding data into bits for packet forwarding.
Which two statements describe static routes? (Choose two.)
- They are created in interface configuration mode.
- They require manual reconfiguration to accommodate network changes.
- They automatically become the default gateway of the router.
- They are identified in the routing table with the prefix S.
- They are automatically updated whenever an interface is reconfigured or shutdown.
Here is a link to the PT Activity.
Open the PT Activity. Perform the tasks in the activity instructions and then answer the question.
When PC0 pings the web server, which MAC address is the source MAC address in the frame from R2 to the web server?
In the segment between R2 and the web server, when R2 encapsulates a frame to be sent to the web server, R2 uses the MAC address of its interface that is directly connected to the segment, Fa0/1, as the source MAC.
A new junior network intern connects a laptop to an access layer switch in the wiring closet. After configuring a terminal emulation program, the intern presses the Enter key, and the S1_ATC_E2> prompt appears. What could have been done to better protect the switch?
- Create a banner message.
- Create a console password.
- Use the enable secret command.
- Use the service password-encryption command.
Configuring the console line with a password requires the password to be entered before the switch prompt can be accessed. A banner is only a warning message. The enable secret command encrypts the enable password. The service password-encryption command protects all passwords from being seen when the show running-configuration command is used.
Why are routers needed in networking?
- to connect devices to a LAN
- to guarantee delivery of packets
- to provide a status on packet delivery
- to forward network traffic to remote networks
- to route information and accept acknowledgments of data delivery
One of the basic functions of a router is to connect different networks. Each interface on a router belongs to a different network. LAN devices can be connected through switches. Packet delivery, packet delivery status, and acknowledgments are functions of the transport layer.
Refer to the exhibit. What is the purpose of the router port that is shown?
- to backup the IOS
- to configure the router
- to run an IOS from an alternate location
- to connect to a port on a switch
The exhibited port is a USB port that is found on some Cisco router models. This USB port provides console access to the router, which allows access to the CLI for configuration purposes. The pale blue background behind the icon is also the standard color that is used on Cisco devices to indicate a console connection.
What is a gateway of last resort?
- the IP address of another router
- the IP address of the Internet provider
- a term to describe a default gateway on a host device
- where dropped packets are sent
Even though a gateway of last resort could be an IP address of an ISP router, this does not have to be the case. A gateway of last resort, as seen in a Cisco routing table, is simply the IP address that is used to route packets addressed to networks not explicitly listed in the routing table. A Windows-based computer uses the term default gateway, not gateway of last resort.
When a router learns that multiple paths are available to a destination network from the same routing protocol, which factor is considered by a router to choose the best path to forward a packet?
- the lowest metric
- the order of paths on the routing table
- the fastest bandwidth of exiting interfaces
- the reliability value of the neighboring routers
When a router learns that multiple paths are available to a destination network from the same routing protocol, the route with the lowest metric is put into the routing table to forward packets toward that network.
What address and prefix length is used when configuring an IPv6 default static route?
The IPv6 address and prefix for a default static route is ::/0. This represents all zeros in the address and a prefix length of zero.
Which two statements correctly describe the components of a router? (Choose two.)
- RAM permanently stores the configuration file used during the boot sequence.
- ROM contains diagnostics executed on hardware modules.
- NVRAM stores a backup copy of the IOS used during the boot sequence.
- Flash memory does not lose its contents during a reboot.
- ROM contains the most current and most complete version of the IOS.
- Flash contains boot system commands to identify the location of the IOS.
A router contains four types of memory:
- RAM – volatile memory used to store the running IOS, running configuration file, routing table, ARP table, as well as serve as a packet buffer
- ROM – nonvolatile memory used to hold a limited version of the IOS, bootup instructions, and basic diagnostic software
- NVRAM – nonvolatile memory used to hold the startup configuration file
- Flash – nonvolatile memory used to hold the IOS and other system files
Which feature on a Cisco router permits the forwarding of traffic for which there is no specific route?
- gateway of last resort
- route source
- outgoing interface
A default static route is used as a gateway of last resort to forward unknown destination traffic to a next hop/exit interface. The next-hop or exit interface is the destination to send traffic to on a network after the traffic is matched in a router. The route source is the location a route was learned from.
The output of the show ip route command contains the following entry:
S 10.2.0.0 [1/0] via 172.16.2.2.
What value is indicated by the 1 in the [1/0] portion of the output?
- number of hops
- administrative distance
- interface ID through which the network can be reached
In the routing table entry, S 10.2.0.0 [1/0] via 172.16.2.2, the numbers inside the bracket indicate the administrative distance and metric respectively.
What code is used in the routing table to identify routes learned through EIGRP?
Each route in a routing table has a code that identifies how the route was learned by the router. The code letter D is used to identify routes that are learned through EIGRP.
Which two statements describe characteristics of load balancing? (Choose two.)
- Load balancing occurs when a router sends the same packet to different destination networks.
- Load balancing occurs when the same number of packets are sent over static and dynamic routes.
- Load balancing allows a router to forward packets over multiple paths to the same destination network.
- Unequal cost load balancing is supported by EIGRP.
- If multiple paths with different metrics to a destinations exist, the router cannot support load balancing.
During the process of encapsulation, how does the PC determine if the packet is destined for a host on a remote network?
- by checking the ARP cache for the destination host MAC address
- by querying the DNS server for the information of the destination host
- by sending a broadcast to the local LAN segment to see if there is any response
- by performing the AND operation on the destination IP address and its own subnet mask
When a PC needs to encapsulate a frame to send a data packet, it first performs an AND operation with its own IP and subnet mask, which yields the network address. Then it performs another AND operation using the destination IP and the same subnet mask. By comparing the two AND operations results, the PC knows if the destination is on the local LAN or on a remote network.