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Routing and switching > Routing Concepts Chapter 1 > Flashcards

Routing Concepts Chapter 1 Flashcards

1
Q

A network administrator enters the command copy running-config startup-config. Which type of memory will the startup configuration be placed into?

flash
RAM
NVRAM
ROM
A

NVRAM

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2
Q

Which packet-forwarding method does a router use to make switching decisions when it is using a forwarding information base and an adjacency table?

fast switching
Cisco Express Forwarding
process switching
flow process
A

Cisco Express Forwarding

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3
Q

When a router receives a packet, it examines the destination address of the packet and looks in the …. table to determine the best path to use to forward the packet.

A

routing

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4
Q

What are two functions of a router? (Choose two.)

A router connects multiple IP networks.
It controls the flow of data via the use of Layer 2 addresses.
It determines the best path to send packets.
It provides segmentation at Layer 2.
It builds a routing table based on ARP requests.
A

A router connects multiple IP networks.

It determines the best path to send packets.

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5
Q

In order for packets to be sent to a remote destination, what three pieces of information must be configured on a host? (Choose three.)

    hostname
    IP address
    subnet mask
    default gateway
    DNS server address
    DHCP server address
A

IP address
subnet mask
default gateway

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6
Q

Which software is used for a network administrator to make the initial router configuration securely?

SSH client software
Telnet client software
HTTPS client software
terminal emulation client software
A

terminal emulation client software

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7
Q

What is a characteristic of an IPv4 loopback interface on a Cisco IOS router?​

The no shutdown command is required to place this interface in an UP state.​
It is a logical interface internal to the router.
Only one loopback interface can be enabled on a router.​
It is assigned to a physical port and can be connected to other devices.
A

It is a logical interface internal to the router.

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8
Q

What two pieces of information are displayed in the output of the show ip interface brief command? (Choose two.)

    IP addresses
    MAC addresses
    Layer 1 statuses
    next-hop addresses
    interface descriptions
    speed and duplex settings
A

IP addresses

Layer 1 statuses

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9
Q

Which two items are used by a host device when performing an ANDing operation to determine if a destination address is on the same local network? (Choose two.)

    destination IP address
    destination MAC address
    source MAC address
    subnet mask
    network number
A

destination IP address

subnet mask

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10
Q

Which two statements correctly describe the concepts of administrative distance and metric? (Choose two.)

Administrative distance refers to the trustworthiness of a particular route.
A router first installs routes with higher administrative distances.
The value of the administrative distance can not be altered by the network administrator.
Routes with the smallest metric to a destination indicate the best path.
The metric is always determined based on hop count.
The metric varies depending which Layer 3 protocol is being routed, such as IP.
A

Administrative distance refers to the trustworthiness of a particular route.
Routes with the smallest metric to a destination indicate the best path.

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11
Q

Which two parameters are used by EIGRP as metrics to select the best path to reach a network? (Choose two.)​

    hop count
    bandwidth
    jitter
    resiliency
    delay
    confidentiality
A

bandwidth

delay

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12
Q

What route would have the lowest administrative distance?

a directly connected network
a static route
a route received through the EIGRP routing protocol
a route received through the OSPF routing protocol
A

a static route

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13
Q

Consider the following routing table entry for R1:
D 10.1.1.0/24 [90/2170112] via 209.165.200.226, 00:00:05, Serial0/0/0
What is the significance of the Serial0/0/0?

It is the interface on R1 used to send data that is destined for 10.1.1.0/24.
It is the R1 interface through which the EIGRP update was learned.
It is the interface on the final destination router that is directly connected to the 10.1.1.0/24 network.
It is the interface on the next-hop router when the destination IP address is on the 10.1.1.0/24 network.
A

It is the interface on R1 used to send data that is destined for 10.1.1.0/24.

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14
Q

A network administrator configures the interface fa0/0 on the router R1 with the command ip address 172.16.1.254 255.255.255.0. However, when the administrator issues the command show ip route, the routing table does not show the directly connected network. What is the possible cause of the problem?

The interface fa0/0 has not been activated.
The configuration needs to be saved first.
No packets with a destination network of 172.16.1.0 have been sent to R1.
The subnet mask is incorrect for the IPv4 address.
A

The interface fa0/0 has not been activated.

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15
Q

A network administrator configures a router by the command ip route 0.0.0.0 0.0.0.0 209.165.200.226. What is the purpose of this command?

to forward all packets to the device with IP address 209.165.200.226
to add a dynamic route for the destination network 0.0.0.0 to the routing table
to forward packets destined for the network 0.0.0.0 to the device with IP address 209.165.200.226
to provide a route to forward packets for which there is no route in the routing table
A

to provide a route to forward packets for which there is no route in the routing table

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16
Q

What are two common types of static routes in routing tables? (Choose two)

a default static route
a built-in static route by IOS
a static route to a specific network
a static route shared between two neighboring routers
a static route converted from a route that is learned through a dynamic routing protocol
A

a default static route

a static route to a specific network

17
Q

What is the effect of configuring the ipv6 unicast-routing command on a router?

to assign the router to the all-nodes multicast group
to enable the router as an IPv6 router
to permit only unicast packets on the router
to prevent the router from joining the all-routers multicast group
A

to enable the router as an IPv6 router

18
Q

How many host addresses are available on the 192.168.10.128/26 network?

30
32
60
62
64
A

62

19
Q

A network administrator has received the IPv6 prefix 2001:DB8::/48 for subnetting. Assuming the administrator does not subnet into the interface ID portion of the address space, how many subnets can the administrator create from the /48 prefix?

16
256
4096
65536

A

65536

20
Q

The last host address on the 10.15.25.0/24 network is ___________

A

10.15.25.254

21
Q

What does the IP address 192.168.1.15/29 represent?

subnetwork address
multicast address
unicast address
broadcast address

A

broadcast address

22
Q

A network administrator subnets the 192.168.10.0/24 network into subnets with /26 masks. How many equal-sized subnets are created?

1
2
4
8
16
64
A

4

23
Q

Refer to the exhibit. Which two network addresses can be assigned to the network containing 10 hosts? Your answers should waste the fewest addresses, not reuse addresses that are already assigned, and stay within the 10.18.10.0/24 range of addresses. (Choose two.)

  1. 18.10.200/28
  2. 18.10.208/28
  3. 18.10.224/28
  4. 18.10.200/27
  5. 18.10.224/27
  6. 18.10.240/27
A
  1. 18.10.208/28

10. 18.10.224/28

24
Q

A network engineer is subnetting the 10.0.240.0/20 network into smaller subnets. Each new subnet will contain between a minimum of 20 hosts and a maximum of 30 hosts. Which subnet mask will meet these requirements?

  1. 255.224.0
  2. 255.240.0
  3. 255.255.224
  4. 255.255.240
A

255.255.255.224

Routing and switching (12 decks)

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