CCENT Practice Test ICND1 | Interconnecting Cisco Networking Devices Part 1

You are upgrading your Cisco IOS image on your 2900 ISR. You won't be removing the old IOS image from the device for disaster recovery reasons. After copying the IOS image from the tftp server to flash and rebooting the device, you notice that the old operating system image is still loading.

How can you load the new IOS image?

A. Issue the boot system command and reload the device

B. Issue the config-register 0x2142 command and reload the device

C. Issue the copy running-config startup-config command

D. Issue the write memory command

You have connected to your Cisco IOS router using SSH for remote management. You have entered the command "debug ip rip" to verify that RIP updates are being sent and received by the router. You wait for 90 seconds and notice that no RIP updates are being sent or received. After reviewing the RIP configuration, you conclude that the configuration is fine. You also verify that logging to the vty lines is set to debugging.
Why are you not seeing the RIP updates?

A. You need to issue the logging monitor 7 command

B. You need to wait longer since RIP updates are every 180 seconds

C. Debugs are not available for vty sessions

D. You need to enable RIP

E. You need to connect to the console port first

F. You need to issue the terminal monitor command

What can you verify on a Cisco IOS ISR with the "show ip interface" command? (Choose four)

A. The number of packets input and output on the interface

B. The IP address and subnet mask of the interface

C. The name or number of an ACL that is applied to the interface

D. Whether the router is a DHCP relay agent

E. The MAC address of the interface

F. The method used to assign the IP address to the interface

G. The status and protocol status of the interface

How many IPv4 ACLs can you apply to a router interface?

A. Four, two inbound and two outbound

B. Two, one inbound and one outbound

C. As many as you need, inbound or outbound

D. Only one, inbound or outbound

You have a Class C address with a subnet mask of /28.
How many bits were borrowed from the host portion of the address?

A. Six

B. One

C. Four

D. Two

E. Three

F. Five

You need to determine the VLAN ID that will be placed in a frame as it exits your Cisco IOS ISR interface of GigabitEthernet 0/0.20. Which command will you use?

A. Show ip route

B. Show mac-address table dynamic

C. Show interface gigabitethernet 0/0.20

D. Show ip arp

E. Show interfaces trunk

F. Show vlans

G. Show interface gigabitethernet 0/0.20 switchport

Which physical layer media is not susceptible to electromagnetic interference?

A. Twisted copper pair

B. Wireless

C. Coaxial

D. Fiber optic

What is the destination address of a router solicitation packet?

A. FF02::2

B. FF02::A

C. FF02::9

D. FF02::6

E. FF02::1

F. FF02::5

You are creating a number IPv4 extended ACL.
What is the valid number range you can use?

A. 1100-1199

B. 100-199

C. 200-299

D. 1-99

E. 700-799

You need to verify the various file systems that are available on your Cisco IOS router.
Which command can you use to accomplish this?

A. show ram

B. show nvram

C. show flash

D. show control-plane host open-ports

E. show file systems

Which dynamic routing protocols are examples of link-state routing protocols? (Choose two)

A. BGP

B. RIP

C. EIGRP

D. OSPF

E. IS-IS

You need to verify the MAC address of Ethernet0/0 on your Cisco IOS ISR.
Which command will display the MAC address?

A. show interfaces Ethernet0/0

B. show mac-address table

C. show ip route

D. show version

E. show ip interface brief

F. show running-config

What is the interface portion of an IPv6 address that is using EUI-64 if the interface MAC address is 00A1-6789-ABCD?

A. 01A1:67FF:FE89:ABCD

B. DCBA:98EF:FF76:1A20

C. 02A1:67FF:FE89:ABCD

D. 02A1:67FE:FE89:ABCD

E. 00A1:67FF:FE89:ABCD

What will occur automatically on a Cisco IOS router when you configure the interface to obtain an IPv4 address via DHCP and the DHCP server hands out IP address, subnet mask, and default-gateway information?

A. The router will become a DHCP server for other devices

B. The router creates an ACL to filter all traffic inbound from the Internet

C. A static default route with a next-hop IP of the ISP will be created in the routing table

D. The router will become a DHCP relay-agent

E. A static route to the next-hop IP of the ISP will be created in the routing table

What is the correct order for the DHCP process?

A. Offer, Discover, Acknowledge, Request

B. Request, Acknowledge, Discover, Offer

C. Discover, Offer, Request, Acknowledge

D. Request, Offer, Discover, Acknowledge

Which statements define the term block size? (Choose two)

A. It is determined exclusively based on the subnet mask

B. It is always a value of 8

C. It is the total number of IPv4 addresses within a subnet

D. It is the progression between subnets within a specific octet

E. It is determined based on the IPv4 address and subnet mask

F. It is always a value of 2

You have taken the network 10.0.0.0 255.0.0.0 and created multiple subnets with a 255.255.255.128 subnet mask.
What is the block size of each of these new subnets?

A. 32

B. 256

C. 512

D. 16

E. 128

F. 64

You are configuring RIPv2 on your Cisco IOS router.
Which command and configuration mode is used to enable the RIP routing process on an interface?

A. R1(config-router)#interface interface_id

B. R1(config-if)#ip rip enable

C. R1(config-router)#network network_id

D. R1(config-if)#network network_id

What type of banner should you configure when you want the message to be displayed anytime a user is required to enter usernames and passwords for management sessions?

A. incoming

B. motd

C. login

D. EXEC

Which of the following should be considered when implementing VLANs? (Choose three)

A. VLAN 1 is the default VLAN

B. The Native VLAN should also be VLAN 1

C. The maximum number of VLANs is switch dependent

D. Management traffic must always be in VLAN 1

E. The default VLAN needs to be identified during initial VLAN deployment

F. The maximum number of VLANs on all switches if 4094

G. The Native VLAN should be changed

Which of the following options are true about IPv6 addresses? (Choose three)

A. Contain 8 fields of 4 hexadecimal values each

B. Are 32 bits in length

C. Are displayed in decimal characters

D. Are 128 bits in length

E. Are displayed in hexadecimal characters

On a Cisco IOS ISR, which layers of the OSI model can you verify with the output of "show ip interface brief" command? (Choose three)

A. Layer 5

B. Layer 1

C. Layer 2

D. Layer 6

E. Layer 7

F. Layer 3

G. Layer 4

You have a Class B addressing space with a subnet mask of /26.
How many subnets were created from the original Class B addressing space?

A. 4096

B. 2048

C. 128

D. 512

E. 1024

F. 256

By default, no password is required to connect to the console port.
Which commands are required to enable local line authentication for the console port? (Choose two)

A. enable

B. exec-timeout

C. privilege

D. login

E. secret

F. password

Which IPv6 prefix will the typical enterprise network receive from the service provider?

A. /52

B. /56

C. /64

D. /32

E. /48

F. /60

Which commands are used to enable a router interface and configure it with the IPv4 address 10.1.1.1/26? (Choose two)

A. no shutdown

B. ip 10.1.1.1 255.255.255.192

C. address 10.1.1.1 255.252.255.192

D. shutdown

E. enable

F. ip address 10.1.1.1 255.255.255.192

Which Cisco IOS router prompt indicates that you are in Global Configuration mode?

A. Router#

B. Router(config-if)#

C. Router.

D. Router>

E. Router(config)#

You want to verify the Cisco IOS software version, ROM version, amount of memory, type of processor, number and types of interfaces, as well as the configuration register value on your 2900 series IOS router. What command will allow you to accomplish this?

A. Show startup-configuration

B. Show running-configuration

C. Show version

D. Show flash

Which command is used to determine the licenses that are activated on your ISR?

A. show license

B. show running-config license

C. show version

D. show running-config

E. show platform

F. show udi license

Which command will assign a static global IPv6 address to an interface?

A. ipv6 address 2001::12:1

B. ipv6 address fe80::12:1

C. ipv6 address 2001::12:1/64 global

D. ipv6 address fe80::12:1 global

E. ipv6 address fe80::12:1/64

F. ipv6 address 2001::12:1/64

A poorly designed network typically includes which of the following? (Choose three)

A. Security vulnerabilities

B. Large broadcast domains

C. Small broadcast domains

D. Proper documentation

E. Management and support challenges

You have implemented stateless address autoconfiguration in your local area network.
What will the end stations use as their default gateway address?

A. The link-local address of the router's interface

B. A special default gateway address that is provided in the router advertisement

C. The unique local address of the router's interface

D. The global address of the router's interface

E. The anycast address of the router's interface

Which command is used to create a backup copy of your Cisco IOS image and store it in a TFTP server?

A. copy system tftp

B. copy flash tftp

C. copy tftp system

D. copy tftp nvram

E. copy nvram tftp

F. copy tftp flash

You are currently building a network diagram. You need to add the model number of the local device you are connected to in the diagram.
Which command will provide you with the model number of the local Cisco IOS device?

A. show cdp neighbors detail

B. show cdp

C. show interfaces

D. show cdp neighbors

E. show version

F. show ip interface brief

You are configuring port security on a Catalyst IOS switch. You need to choose a violation mode that will deny frames that are in violation of the port security settings while still allowing frames that are not in violation. In addition, syslog messages need to be generated and the port security violation counter must increase each time a violation occurs.
Which port security violation mode should you choose?

A. Err-disable

B. Protect

C. Shutdown

D. Disable

E. Restrict

Why should you implement port security on a switch interface?

A. To control which devices are allowed to access the network

B. To prevent Layer 2 loops from occurring

C. To prevent a unidirectional link

D. To prevent MAC address flooding attacks

E. To control which devices are allowed to manage the switch

Which command is used to verify the DHCP relay agent address that has been set up on your Cisco IOS router?

A. show ip interface brief

B. show ip dhcp bindings

C. show ip route

D. show ip interface

E. show interface

F. show ip dhcp pool

What is required for a directly connected route to be added to the routing table? (Choose two)

A. The network command must be issued under the routing process

B. BGP must be running on the router

C. A local route must be manually created

D. The IP route command must be configured in global configuration mode

E. Configure an IP address on the interface

F. The interface Status must be up and the Protocol must be up

You are troubleshooting an interface issue on your Cisco IOS ISR. The output of "show ip interface brief" indicates that Ethernet0/0 is down, down.
What are the possible reasons for this? (Choose three)

A. There is no cable attached to Ethernet0/0

B. The device at the other end of the cable is powered off

C. The Ethernet0/0 interface is shutdown

D. The interface on the device at the other end of the cable is shutdown

E. There is an encapsulation mismatch between the devices at each end of the cable

You are configuring RIP on your Cisco IOS router.
Which configuration command will successfully enable RIPv2?

A. R1(config)#router rip
R1(config-router)#2

B. R1(config)#router rip version 2

C. R1(config)#router rip
R1(config-router)#version 2

D. R1(config)#router rip 1
R1(config-router)#version 2

E. R1(config)#router rip 2

Which route type in the routing table identifies the networks that are attached to the local router?

A. Static route

B. Directly connected route

C. Dynamic route

D. Local route

E. Default route

Which command can be used to prevent syslog messages from interrupting the commands that you are currently typing in?

A. no login

B. enable secret

C. no exec

D. transport input telnet

E. service password-encryption

F. logging synchronous

G. exec-timeout

What are the results of subnetting a large Class A network? (Choose two)

A. Support fewer networks as compared to the original Class A network

B. Support more devices in each network as compared to the original Class A network

C. Support more networks as compared to the original Class A network

D. Support fewer devices in each network as compared to the original Class A network

Which physical layer media are used today for connecting network devices (switches and routers) together in a LAN? (Choose two)

A. Coaxial

B. Twisted copper pair

C. Fiber optic

D. Wireless

What is the purpose of domain name system (DNS)?

A. To map private IPv4 addresses to public IPv4 addresses

B. To map MAC addresses to hostnames

C. To map IPv4 addresses to hostnames

D. To map IPv4 address to NetBIOS names

E. To map IPv4 addresses to MAC addresses

You are configuring your Cisco IOS switch. You have issued the command "enable secret my_secure_password".
What are the results of executing the command? (Choose two)

A. The password "my_secure_password" will be required to access the console port

B. The password "my_secure_password" will be hashed in the running configuration

C. The password "my_secure_password" will be required to access the vty lines

D. The password "my_secure_password" will be encrypted in the running configuration

E. The password "my_secure_password" will be required to access privilege EXEC mode

F. The password "my_secure_password" will be in plain text in the running configuration

Which of the following messages in the DHCP process are broadcasted? (Choose two)

A. Request

B. Offer

C. Discover

D. Acknowledge

You are implementing a VLSM network. You are using the Class B network of 172.16.0.0/16 and need to create 256 networks from this. The fifth network will then be subnetted into /30 networks.
What is the subnet ID of the fourth /30 network?

A. 172.16.4.12/30

B. 172.16.4.4/30

C. 172.16.4.6/30

D. 172.16.4.8/30

E. 172.16.4.14/30

F. 172.16.4.10/30

What are the two main functions of a router? (Choose two)

A. Determine the optimal path to forward packets and store the decision in a routing table

B. Determine the optimal path to forward frames and store the decision in a MAC address table

C. Forward frames based on entries in a MAC address table

D. Forward packets based on entries in a routing table

You need to configure your 2960 Catalyst switch to automatically recover a port within one minute that has been placed in the err-disabled state because too many MAC addresses were learned on an interface.
Which commands will accomplish this for you? (Choose two)

A. errdisable recovery cause psecure-violation

B. errdisable recovery interval 10

C. errdisable recovery cause bpduguard

D. errdisable recovery interval 60

E. errdisable recovery interval 1

F. errdisable recovery cause security-violation

Which of the following statements are true regarding the processing of ACLs that have been applied to router interfaces? (Choose two)

A. Inbound ACLs will be processed before the routing table lookup occurs

B. Inbound ACLs will be processed after the routing table lookup has occurred

C. Outbound ACLs will be processed after the routing table lookup has occurred

D. Outbound ACLs will be processed before the routing table lookup occurs

Which of the following are characteristics of IP? (Choose three)

A. Connection-oriented protocol

B. Guaranteed delivery

C. Connectionless protocol

D. Transport layer protocol

E. Best-effort delivery

F. Network layer protocol

What are the benefits of implementing IPv6? (Choose four)

A. Transition richness

B. Larger address space

C. Simpler header

D. Security and mobility

E. Smaller address space

F. Complex header

Cisco test CCENT 100-105

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