CCNA DC Networking Practice Test

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 is the administrative distance of a directly connected network?

A. 2 hops

B. There is no way to know

C. Zero

D. 1 hop

Which three options represent the default subnet mask associated with a Class A address? (Choose three)

A. 255.0.0.0

B. 255.255.255.0

C. 11111111.00000000.00000000.00000000

D. /24

E. /8

F. 00000000.11111111.11111111.11111111

G. /16

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

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.

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

You are given four switches with the same bridge priority.

How would you identify the root bridge?

A. The switch with the lowest IP address

B. The switch with the highest MAC address

C. The switch with the highest IP address

D. The switch with the lowest MAC address

You need 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. 126 hosts

B. Network mask /25

C. 30 hosts

D. Network mask /27

E. 62 hosts

F. Network mask /26

What command should you use to display a list of all installed components?

A. show module

B. show version

C. show interface

D. show inventory

How are subnet masks calculated? (Choose two)

A. Subnetting provides the benefit of allowing more hosts per subnet

B. The formula used to calculate the number of subnets a given subnet mask would create is 2^s, where s equals the number of borrowed bits

C. When creating a custom subnet mask, the first and last subnet cannot be used

D. In order to create 21 subnets, you would need to borrow a minimum of 5 host bits

Which of the following routing protocols is an Exterior Gateway Protocol?

A. BGP

B. RIP

C. IGP

D. OSPF

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

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 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

What command would you run to troubleshoot EIGRP?

A. show route eigrp

B. show ip route eigrp

C. view ip eigrp

D. route \ip eigrp

Which two protocols are categorized as link-state routing protocols? (Choose two)

A. EIGRP

B. IS-IS

C. RIP

D. BGP

E. OSPF

Which physical topology requires the use of a terminator?

A. Bus

B. Wireless

C. Extended star

D. Star

E. Ring

Which two devices use a MAC table to determine the segment to which the data is to be sent? (Choose two)

A. Bridge

B. Hub

C. Repeater

D. Switch

E. Router

How many blocks of IP addresses are designated for Class B private networks in RFC 1918?

A. 1

B. 256

C. 16

D. 128

How many octets does a Class A network have in the host field?

A. 3

B. 4

C. 1

D. 2

If a /20 subnet was applied to a class B address, how many subnets would you create?

A. 4

B. 16

C. 32

D. 8

E. 14

What does the acronym SVI stands for?

A. Switched Virtual Interface

B. Static Virtual Interface

C. Stock Virtual Interface

D. Standard Visual Interlace

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

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

Which two features are available to a Cisco Nexus 7000 Series Switch that has the Advanced LAN Enterprise License? (Choose two)

A. Cisco TrustSec

B. IVR

C. GRE tunnels

D. Cisco FabricPath

E. VDCs

How does Spanning Tree Protocol provides loop resolution? (Choose two)

A. By handing the duplicate transmission to the appropriate upper-layer protocol

B. By reestablishing connectivity and by automatically activating a previously inactive path

C. By forcing certain ports into a standby state so that they do not listen to, forward, or flood data frames

D. By managing the physical paths of the given network segments

Which components are required to tunnel IPv6? (Choose two)

A. Tunnel stem

B. Tunnel mode

C. Tunnel source

D. Tunnel encryption

What is the function of an ARP? (Choose two)

A. Defining how data is formatted for transmission

B. Mapping IP addresses to physical addresses on a network

C. Providing connectivity and path selection between two host systems

D. To hold the recent bindings of IP addresses to MAC addresses in a table

What command would you use to reference an object group?

A. point group

B. addrgroup

C. address group

D. use group

Which part of the IP PDU header specifies the IP address of the sending node?

A. Source address

B. Protocol

C. Destination address

D. Options

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 component is responsible for the interconnection of application sessions to the network layer?

A. TCP

B. CDP

C. LLDP

D. ARP

E. STP

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

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 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.

What subnet mask should be chosen to create 40 subnets with a Class B network?

A. 255.255.248.0

B. 255.255.224.0

C. 255.255.240.0

D. 255.255.252.0

E. 255.255.255.128

How is Cisco NX-OS suitable for the datacenter? (Choose two)

A. It eliminates the need for the Cisco iOS

B. It has a rich feature set that includes routing, switching, and storage networking

C. It has an HTML interface and a CLI similar to the Cisco iOS Software

D. It has an XML interface and a CLI similar to the Cisco iOS Software

Which three tasks are performed by ACLs? (Choose three)

A. Detects patterns of misuse in network traffic

B. Provides a basic level of security for network access

C. Provides traffic flow control

D. Generates an alarm during an attack

E. Improves network performance by limiting network traffic

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

Which feature set is included with a Cisco Nexus 5010 Storage Protocol Services license?

A. VDCs, Cisco TrustSec, FCoE

B. RBAC, iSCSI, port channels

C. FC, FCoE, NPV

D. FC, RMON, RSPAN

In which location of a large enterprise network would you expect the bulk of corporate information to be located?

A. Branch office

B. Main office

C. Mobile user location

D. Home office

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 hexadecimal number results from converting the binary number 00011011?

A. 83

B. F5

C. D2

D. CA

E. B3

F. 1B

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

Which category of Cisco NX-OS features includes Cisco TrustSec?

A. High availability

B. Layer 3

C. Layer 2

D. Security

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

What characteristic do TCP and UDP have in common?

A. They are capable of performing a very limited form of error checking

B. They operate at the transport layer of the OSI model

C. They provide service on a best-effort basis and do not guarantee packet delivery

D. They provide no special features that recover lost or corrupted packets

Which Cisco NX-OS command mode allows access to the broadest range of commands?

A. Line Configuration Mode

B. Routing Protocol Configuration Mode

C. Global Configuration Mode

D. Interface Configuration Mode

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.

What is the benefit of multihoming?

A. Adds security through authentication

B. Tunnels through IPv4

C. Provides encryption

D. Connects to multiple subnets

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

What is the purpose of the "copy running-config startup-config" command?

A. To reload the switch

B. To save the running configuration to NVRAM

C. To display the current and saved configuration

D. To erase the startup configuration

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

A. TFTP

B. Telnet

C. FTP

D. DNS

During data flow, which Layer 4 protocol maintains reliable delivery of the data?

A. UDLD

B. RIP

C. LACP

D. TCP

E. PAgP

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Cisco test CCNA 640-911

While calculating your results take a moment to complete our simple survey!

How likely is it that you would recommend LearnCisco.net to a friend or colleague?

Why?

How likely is it that you would recommend LearnCisco.net
to a friend or colleague?