CCNA DC Networking Practice Test

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

What are three characteristics for link-state routing protocols? (Choose three)

A. The Diffusing Update Algorithm (DUAL) is required to achieve rapid convergence.

B. Two extra tables are required in addition to the routing table.

C. Summary routes can be created anywhere within the network.

D. CPU cycles are required to calculate the best paths through the network.

E. Areas must remain contiguous at all times.

What are the characteristics of today's LANs? (Choose two)

A. Switches are connected by high-speed links

B. Users are grouped by physical location

C. Bridges are added to networks to accommodate resource and bandwidth demands

D. More switches decrease the amount of traffic between each switch

Review the network diagram below.

Which icon represents a Nexus 5000 switch?

Review the network diagram below. <br /> <br /> Which icon represents a Nexus 5000 switch?

A. D

B. A

C. B

D. C

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.

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 statement about ACLs that are applied to an interface is true?

A. A maximum of 5 access lists can be applied to an interface

B. Only one access list can be applied on an interface

C. You can configure one access list, per direction, per Layer 3 protocol

D. You can place as many access lists as you want on the interface

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

Which of these addresses are private IP addresses? (Choose two)

A. 172.17.10.10

B. 130.16.71.43

C. 10.215.34.124

D. 221.200.15.10

Which device uses a table of MAC addresses to identify the segment to which a data frame should be sent?

A. Gateway

B. Wireless access point

C. Switch

D. Router

E. Repeater

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 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

Which component of an Ethernet MAC address identifies the manufacturer of the NIC card?

A. Broadcast bit

B. LAA bit

C. OUI

D. Vendor assigned address

Which STP protocol provides a separate 802.1D spanning-tree instance for each VLAN that is configured in the network?

A. CST

B. RSTP

C. MSTP

D. PVST+

E. RPVST+

What does the acronym SVI stands for?

A. Switched Virtual Interface

B. Static Virtual Interface

C. Stock Virtual Interface

D. Standard Visual Interlace

What are the characteristics of the 802.1Q frame? (Choose two)

A. It assigns an identifier value that is based on the native VID of the port

B. It carries the traffic of multiple VLANs over a single physical link and allows you to extend the VLANs across the entire network

C. It uses an internal tagging mechanism that inserts a 4-byte tag field into the original Ethernet frame between the Source Address and the Type or Length fields

D. It alters the frame, so the trunking device recomputes the frame check sequence (FCS) on the modified frame

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

Your business requires that you have fast convergence time and ample resources are in place for your solution.

What Cisco-standard Spanning Tree Protocol should you use?

A. PVST+

B. RSTP

C. MSTP

D. Rapid PVST+

What is the proper boot sequence of a Cisco Nexus 7000 switch?

A. Loader, kickstart image, BIOS, system image

B. BIOS, loader, kickstart image, system image

C. BIOS, kickstart image, loader, system image

D. Loader, BIOS, system image, kickstart image

When configuring VLANs for a Cisco Nexus switch, which VLANs are reserved for system use?

A. 2 to 3967

B. 4095 and higher

C. 1

D. 3968 to 4094

Which statements best describe encapsulation and de-encapsulation? (Choose two)

A. Encapsulation wraps data with the necessary protocol information before network transit

B. De-encapsulation involves the data link layer checking the FCS to see if the data is in error

C. Encapsulation involves the data link layer stripping the data link header and trailer

D. De-encapsulation involves the presentation layer adding the presentation layer header to the data

Which statements accurately describe how the decimal and binary number systems function, or identify the powers of 2 concept? (Choose three)

A. The decimal system uses only the digits 0 and 1

B. Each bit in the binary value is based on power-of-2 calculations

C. The binary system is the foundation of computer operations

D. The decimal system is used in everyday mathematics

E. The binary system uses the digits 0 through 9

F. When calculating powers of 2, the least significant bit is 2^1

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

A. module

B. status

C. ethernet

D. switchport

You want to configure a port type that will never have a switch connected to it.

Which command should you use?

A. show spanning-tree

B. sh spanning-tree

C. spanning-tree port type network

D. spanning-tree port type edge

You want to provide signal amplification at the layer responsible for electrical, mechanical, procedural, and functional specifications.

Which layer and device combination should you use?

A. Bridge – Layer 2

B. Switch – Layer 1

C. Repeater – Layer 1

D. Repeater – Layer 2

What type of structure does a link-state routing protocol use?

A. Flat structure

B. Horizontal

C. Heterarchy

D. Hierarchical

What are the basic services offered by the transport layer? (Choose two)

A. Flow control

B. Session multiplexing

C. Segmentation

D. Reliability

Which command is entered next after enabling SVI for VLAN 20 using the IP address and mask 10.1.1.1/24 on a Cisco Nexus switch when configuring an SVI?

A. no shutdown

B. ip address 10.1.1.1/24

C. interface vlan 20

D. interface-vlan feature

E. feature interface-vlan

F. vlan interface 20

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

A. TRILL

B. OTV

C. IEEE 802.1x

D. Cisco TrustSec

E. PIM

F. CoPP

How has Ethernet evolved over the years? (Choose two)

A. It now transmits data at 10 Mb/s

B. It has been updated to add more capacity

C. It has evolved from the 10 Mb/s standard to 10 Gb/s and faster

D. Ethernet 802.3 specified the data link layer (Layer 1) and the MAC portion of the physical layer (Layer 2)

What are the characteristics of a DSL Internet connection? (Choose three)

A. Ethernet output is sent to a router

B. It uses the cable television infrastructure

C. It uses classic digital local loops

D. It uses existing telephone lines

E. Incoming lines are terminated into a modem

You have an IP address of 192.168.1.2 and have applied the /25 bit subnet mask to the address.

What are the subnet ID, broadcast address, and usable address range of this subnet?

A. The subnet ID is 192.168.0.0, the broadcast is 192.168.2.32, and the usable range is 192.168.0.1 to 192.168.2.31

B. The subnet ID is 192.168.1.0, the broadcast is 192.168.1.127, and the usable range is 192.168.1.1 to 192.168.1.126

C. The subnet ID is 192.168.1.0, the broadcast is 192.168.1.255, and the usable range is 192.168.1.1 to 192.168.1.254

D. The subnet ID is 192.168.1.0, the broadcast is 192.168.1.64, and the usable range is 192.168.1.1 to 192.168.1.63

E. The subnet ID is 192.168.1.0, the broadcast is 192.168.2.255, and the usable range is 192.168.1.1 to 192.168.2.254

Which Spanning Tree Protocol has a standard of 802.1w with fast convergence and medium amount of required resources?

A. Rapid PVST+

B. PVST+

C. MSTP

D. RSTP

What tasks should a VTP be responsible for? (Choose two)

A. It minimizes misconfigurations and configuration inconsistencies

B. It maintains VLAN configuration consistency by managing additions, deletions, and name changes

C. It inserts a 4-byte tag field into the original Ethernet frame

D. It carries the traffic of multiple VLANs over a single physical link

Which two statements are true concerning the Cisco Nexus 7000 Series Fabric Modules? (Choose two)

A. Allows for up to five concurrently active fabric modules

B. Provides dual traces for each supervisor module

C. Delivers up to 550 Gb/s per slot with Fabric-1 Modules

D. Supports lossless fabric failover

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

A. A VLAN can exist on a single switch or can span multiple switches.

B. A VLAN cannot limit multicast traffic.

C. A VLAN is a logical broadcast domain.

D. VLANs increase the size of the collision domain.

E. A VLAN is physical broadcast domain.

Which protocols associated with the OSI model provide file transfer services? (Choose two)

A. TFTP

B. Telnet

C. FTP

D. DNS

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

Which component is responsible for determining where packets of data are to be routed based on the destination address?

A. MAC sublayer

B. IP

C. TCP

D. LLC sublayer

What are features of Cisco PortChannel? (Choose two)

A. It is limited to the aggregation of a number of links that run between the same two devices

B. It combines the physical links into a single logical link

C. It provides load balancing based on header hashing

D. It treats links as individual links

Your organization is experiencing a power failure. After power is restored, Host A on VLAN1 needs to communicate with Host B on VLAN2.

How will they learn each other's MAC addresses?

A. If both hosts previously communicated, they will refer to their ARP cache to send the frame to the appropriate location

B. When the switch receives the frame from Host A, it will flood the ARP request from all of its ports except the originating port

C. When the hub receives the frame from Host A, it will flood the ARP request from all of its ports except the originating port

D. The switch will have the MAC addresses cached and will forward the frames to the appropriate port

You have an address of 172.16.0.0/22, which equals a subnet mask of 255.255.252.0.

Determine the block size of this subnet.

A. 8

B. 16

C. 18

D. 6

E. 2

F. 4

Which command is used to display the ARP cache on a Nexus switch?

A. show running-config

B. show ip route

C. show ip arp

D. show arp

You are tasked with subnetting a private address of 172.16.0.0/16 so that it provides 64 subnets while maximizing the number of host addresses in each subnet.

What are the first four subnets?

A. 172.16.0.0/22
172.16.4.0/22
172.16.8.0/22
172.16.12.0/22

B. 172.16.0.0/21
172.16.0.8/21
172.16.0.16/21
172.16.0.24/21

C. 172.16.1.0/23
172.16.2.0/23
172.16.3.0/23
172.16.4.0/23

D. 172.16.0.0/23
172.16.2.0/23
172.16.4.0/23
172.16.6.0/23

Which STP protocol uses one 802.1D spanning-tree instance for the entire network?

A. RPVST+

B. CST

C. RSTP

D. MSTP

E. PVST+

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

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

The subnet 172.16.0.0/21 equals a subnet mask of 255.255.248.0.

Determine the block size of this subnet.

A. 32

B. 8

C. 128

D. 4

E. 16

F. 64

What is the administrative distance of a directly connected network?

A. 2 hops

B. There is no way to know

C. Zero

D. 1 hop

What should you consider when configuring 802.1Q trunking? (Choose two)

A. The "switchport mode" command is used to set an Ethernet port to trunk mode

B. The trunk switchport mode parameter is used to disable port trunk mode

C. The access switchport mode parameter is used to configure the port into permanent 802.1Q trunk mode

D. The "show interface switchport" command is used to display the trunk parameters and VLAN information of the port

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