CCNA DC Networking Practice Test

What are two advantages of implementing a router on a stick for VLANs on your network? (Choose two)

A. The router provides high availability.

B. Layer 3 services are not required on the switch.

C. Multiple traffic paths prevent congestion.

D. Latency is reduced as the frames leave the switch chassis.

E. The router provides communications between the VLANs.

Which option, when used with the "show interface" command, displays the VLAN?

A. module

B. status

C. ethernet

D. switchport

Which three options are Layer 3 features of Cisco NX-OS? (Choose three)

A. MPLS

B. BGP

C. GRE

D. HSRP

E. TRILL

F. UDLD

You must meet the following criteria:

- Defines the sample-ACL
- Includes statements that permits traffic from any IP address on the 172.16.x.x network carrying TCP traffic going to any IP address that is destined to the www port
- Activated on the Ethernet interface e1/5 in an inbound direction

Which of the following options contains the set of commands to meet the listed criteria?

A. Option A

B. Option B

C. Option D

D. Option C

Host A is sending data to Host B.

When would a default gateway be required?

A. Host A does not have an ARP entry for Host B

B. Host A and B are assigned MAC addresses on different networks

C. Host A and B are assigned IP addresses on different networks

D. Host A and B are assigned IP addresses on the same network

What are the two primary elements in OSPF's two-layer network hierarchy? (Choose two)

A. Area

B. Area border router

C. Backbone router

D. Autonomous system boundary router

E. Autonomous system

Which two commands are required to return a Cisco Nexus switch to an unconfigured state? (Choose two)

A. remove running-config

B. reload

C. write erase

D. startup erase

E. remove startup-config

Which address represents a valid compression of the 2031:0000:130F:0000:0000:09C0:876A:130B IPv6 address?

A. 2031:0:130F:0:9C0:876A:130B

B. 2031::130F::09C0:876A:130B

C. 2031:0:130F::9C0:876A:130B

D. 2031:0:130F:0:0:9C:876A:130B

Which three commands are used to configure RIP on a Nexus switch? (Choose three)

A. router rip

B. show ip route

C. ip router rip

D. show ip rip

E. feature rip

How can a subnet mask can be changed to create multiple subnetworks? (Choose three)

A. It allows better utilization of the bits in the host ID

B. It allows an IP network to be subdivided into smaller networks

C. The bits of the subnet mask that correspond to the host ID are set to 1

D. The practical minimum number of bits that can be borrowed to form a subnet 2

E. It can be changed to redefine the network portion of a class-based network ID

What are the characteristics of a VLAN? (Choose two)

A. It can share broadcasts in different VLANs

B. It can improve the overall performance of the network

C. It cannot span multiple switches

D. It provides segmentation and organizational flexibility

What is the purpose of DNS in IP addressing? (Choose two)

A. It sets TCP/IP stack configuration parameters

B. It converts host names into IP addresses

C. It sends data to all the devices on a network

D. It frees users of IP networks from the burden of needing to remember IP addresses

How does a switch handle a unicast frame when it does not have an entry for the destination address?

A. It filters the frame.

B. It forwards the frame.

C. It floods the frame.

D. The frame is dropped.

You have entered a command and received an error message that it is incomplete.

What character can you use to display more information about the command?

A. h

B. /

C. #

D. ?

You are in the process of converting a binary number to determine its decimal equivalent.

Convert 10101101 to decimal.

A. 201

B. 185

C. 173

D. 211

Which two important functions are performed by routers? (Choose two)

A. VLAN configuration

B. Packet forwarding

C. Data frame management

D. Signal amplification

E. Path determination

How do multiple copies of the same frame arriving at the intended host cause problems with the receiving protocol? (Choose two)

A. Most protocols are not designed to recognize or cope with duplicate transmissions

B. Protocols attempt to hand the duplicate transmission to the appropriate upper-layer protocol

C. Loop avoidance mechanisms prevents one of the interfaces from transmitting frames

D. Protocols that make use of a sequence-numbering mechanism assume that all the transmissions have been succeeded

Why is it important to have a separation between the control plane and the data plane?

A. A failure within one plane will not disrupt the other plane

B. When one device fails, it will not affect other devices

C. It reduces the number of network collisions

D. It allows you to use multiple operating systems in one device

How do switches help eliminate network congestion? (Choose two)

A. Media-rate adaptation allows bandwidth to be matched as needed

B. Joining multiple segments extends a LAN to cover greater distances

C. Dedicated communication between devices increases frame throughput

D. Potential network problems can be isolated to specific segments

In the IPv6 address 2001:db8:3c4d:15::1a2f:1a2b, what is the first part of the global routing prefix?

A. 2001

B. 1a2f

C. db8

D. 1a2b

You are required to create 8 subnets in the 192.168.1.0/24 network.

What is the new network mask that will be used, and how many hosts can be used on each of the subnets? (Choose two)

A. Network mask /26

B. Network mask /25

C. 62 hosts

D. 30 hosts

E. 126 hosts

F. Network mask /27

You want to ensure that when you make a change to the VLAN configuration, it only affects the local switch. Which VTP mode should you use?

A. Off

B. Server

C. Transparent

D. Client

Using the block size technique, what is true of /26? (Choose three)

A. It has a 128 mask

B. It has a 192 mask

C. It will result in 8 subnets with 30 hosts

D. It has a block size of 64

E. It has a block size of 128

F. It will result in 4 subnets with 62 hosts

What subnet mask will create a required amount of 16 subnets within a Class B network?

A. 255.255.128.0

B. 255.255.254.0

C. 255.255.240.0

D. 255.255.192.0

Which three options are high availability features of Cisco NX-OS? (Choose three)

A. GR

B. OTV

C. ISSU

D. CoPP

E. ACL

F. SSO

Which protocol from the TCP/IP model runs in full-duplex mode?

A. IGMP

B. UDP

C. ICMP

D. IP

E. TCP

Which three statements are true concerning VLANs? (Choose three)

A. You can assign each switch port to multiple VLANs.

B. A Layer 2 device can be used to route packets between VLANs.

C. Ports in different VLANs do not share broadcasts.

D. Each VLAN in a switched network corresponds to an IP network.

E. A router or multilayer switch is required for inter-VLAN routing.

Which key, or key combination, will allow you to enter the BIOS configuration utility during the boot sequence of a Cisco Nexus 7000 switch?

A. Esc

B. Ctrl-Shift-6

C. Ctrl-]

D. Ctrl-C

Which Cisco NX-OS design feature makes it possible to nondisruptively perform complete image upgrades without affecting the data forwarding plane?

A. Modular software design

B. Control plane and data plane functional separation

C. Integrated virtualization support for Layer 2 and Layer 3

D. Cisco NX-OS ISSU

Which commands can be used to change the state of an interface? (Choose two)

A. type

B. no shutdown

C. shutdown

D. slot

You are currently converting an IP address to binary format.

What is the binary value of the decimal number 176?

A. 11001000

B. 10110000

C. 10111000

D. 10011000

Which VTP mode forwards VTP advertisements but does not propagate changes to other switches in the VTP domain?

A. Transparent

B. Off

C. Client

D. Server

What are characteristics of Cisco NX-OS? (Choose two)

A. It brings two fundamental technologies to a single platform

B. It includes features for routing, switching, and storage networking

C. It was developed for datacenter environments

D. It is a stripped down Windows kernel

How many bits are contained in an IPv6 address?

A. 64

B. 48

C. 128

D. 32

What is the purpose of VTP pruning? (Choose two)

A. It looks at the 4-byte tag field and determines where to deliver the frame

B. It uses VTP advertisements to determine when a trunk connection is flooding traffic needlessly

C. It allows you to extend the VLANs across the entire network

D. It increases available bandwidth by restricting the flooded traffic to those trunk links that the traffic must use to access the appropriate network devices

What is the purposing of windowing? (Choose two)

A. It establishes a connection using a three-way handshake

B. It allows the sending computer to send out a number of packets without receiving acknowledgment of those packets

C. It involves distinguishing sessions from other sessions using port numbers

D. It helps maintain the speed and reliability of the connection

Which key sequence would you use to delete all characters from the cursor to the beginning of the command line?

A. Ctrl-K

B. Ctrl-C

C. Ctrl-Z

D. Ctrl-U

Which configuration mode should you use to enable options like OSPF, EIGRP, and BGP?

A. Line configuration mode

B. Global configuration mode

C. Interface configuration mode

D. Routing protocol configuration mode

How does a traffic find the appropriate host computer once it is on the destination network?

A. APIPA address

B. Host IP address

C. Host MAC address

D. Host name

You want to determine the route to a destination using "tracert".

Which parameter should you use to specify that host addresses should not be resolved to addresses?

A. target_host

B. -j host_list

C. -d

D. -h maximum_hops

Which command displays the number of times the SPF algorithm has been executed?

A. show ip ospf

B. show ip ospf neighbors

C. show ip route

D. show ip ospf interfaces

Which three address ranges are defined for private use by RFC 1918? (Choose three)

A. 172.16.0.0 to 172.31.255.255

B. 192.168.1.0 to 192.168.1.255

C. 192.168.0.0 to 192.168.255.255

D. 10.0.0.0 to 10.255.255.255

E. 172.16.0.0 to 172.16.255.255

Which fundamental technologies does Cisco NX-OS Software use? (Choose three)

A. Layer 3 routing

B. Storage protocols

C. Paired operating systems

D. Fast power-up

E. Layer 2 switching

What are two primary characteristics of RIP? (Choose two)

A. Maximum allowable hop count is 15.

B. Routing updates are broadcast every 30 seconds by default.

C. The default administrative distance is 90 for internal routes.

D. The dead interval is four times the hello interval by default.

E. The hello interval on multiaccess networks is 10 seconds by default.

You want to show one line for each VLAN, with information such as the VLAN name, the status, and the switchports. What command should you use?

A. show vlan name

B. show vlan brief

C. show vlan

D. show vlan id

Which IEEE Ethernet LAN standard provides 40 Gb/s?

A. 802.3ae

B. 802.3ba

C. 802.3z

D. 802.3x

You can view the ARP table on a Nexus switch.

But, if you wanted to view it from a client, what command would you type in the command prompt?

A. ARP -s

B. ARP /r

C. ARP inet_addr

D. ARP -a

Which layer of the OSI model is the transport layer?

A. Layer 5

B. Layer 1

C. Layer 2

D. Layer 4

Which Cisco data center switch provides a 1-RU switch footprint, is Layer 3 capable, supports DCB and FCoE, and delivers 960 Gb/s throughput?

A. Cisco Nexus 6004 Switch

B. Cisco Nexus 5548 Switch

C. Cisco Nexus 7009 Switch

D. Cisco Nexus 5020 Switch

What is the purpose of a subnet mask? (Choose three)

A. Used by end systems to identify the destination IP address as either local or remote

B. Defines the number of bits that represent the network and subnet part of the address

C. It can be changed to redefine the network portion of a class-based network ID

D. Needed to send a packet out of the local network

E. Uses a set of servers to resolve the names that are associated with numbered addresses

What is another name for a backup route?

A. Favourable path

B. Block route

C. Feasible successor

D. Backdoor route

In which port role is data traffic not processed in and out of listening ports, but MAC addresses of inbound traffic are stored in the MAC address table of the switch?

A. Designated

B. Learning

C. Listening

D. Root

Which Ethernet connection type is hot-swappable and allows connecting to different connection media?

A. MT-RJ

B. SFPs

C. GBICs

D. RJ-45

What is the benefit of an IPv6 aggregation?

A. Keeps the IP addresses secure

B. Makes routing more efficient

C. Is the same as subnetting in IPv4

D. Helps to keep subnets manageable

How does EUI-64 work?

A. Assigns an IPv4 address and then adds the MAC address

B. Uses the IPv4 address and adds additional 32 bits

C. Assigns an IPv6 address from DHCPv6

D. Uses the MAC address plus 16 bits to create an address

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