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CCNA ICND 1,2 Practice Questions > Practicd Question 1 > Flashcards

Practicd Question 1 Flashcards

1
Q

Which component is the default storage location for the Cisco IOS?

A

Flash memory

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2
Q

True/False: A router searches for the IOS by default from NVRAM.

A

False.
The bootstrap looks for and loads the Cisco IOS software. The bootstrap is a program in ROM that is used to execute programs. The bootstrap program is responsible for finding where each IOS program is located and then loading the file. By default, the IOS software is loaded from flash memory in all Cisco routers.

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3
Q

True/False: HSRP is a standard FHRP.

A

False.
HSRP= Cisco Proprietary
VRRP= IEEE standard
GLBP= Cisco Proprietary

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4
Q

What three items must match for a successful EIGRP neighbor discovery process?

A
  1. AS number
  2. K values
  3. Authentication settings
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5
Q

What algorithm is used by EIGRP for selecting and maintaining the best path to each remote network?

A

DUAL

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6
Q

What is the backup HSRP router called

A

Standby Router

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7
Q

IN HSRP, what IP address should be the gateway of the hosts?

A

The IP address of the virtual router

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8
Q

What value is used to select the HSRP Active Router?

A

1- highest Priority

2- highest IP address (tie breaker)

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9
Q

What syslog value indicates a normal but significant condition?

A 
5
0-Emergency = System unusable.
1-Alert = Immediate action needed.
2-Critical = Critical condition.
3-Error = Error condition.
4-Warning = Warning condition.
5-Notification = Normal but significant condition.
6-Information = Informational message only.
7-Debug = Appears during debugging only.
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10
Q

What version of SNMP increased security?

A

SNMPv3

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11
Q

What Cisco IOS feature can monitor connectivity and performance in real time?

A

NetFlow

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12
Q

What is used to check the basic functionality of the router hardware and determines which interfaces are present?

A

POST

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13
Q

What is the length of the configuration register?

A

16 bits

changing the register:
R1(config)#config-register 0x2100 –rommon mode
R1(config)#config-register 0x2101 – rom boot
R1(config)#config-register 0x2102 – boot from NVRAM

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14
Q

What command can show you the current setting of the configuration register?

A

show version

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15
Q

Why does Cisco uses its proprietary extension of PVST+ with STP and RSTP?

A

Root Bridge placement enables faster convergence as well as optimal path determination.

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16
Q

What command is used to download the IOS from aTFTP server to flash memory?

A

copy tftp flash

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17
Q

What does BPDU Guard perform?

A

BPDU Guard shuts down a port if a BPDU is seen on that port.

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18
Q

What is an image with all feature sets available called?

A

Universal

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19
Q

What are version 15.0 evaluation licenses called?

A

Right-To-Use licenses

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20
Q

On which types of networks will OSPF elect a backup designated router?

A

On NonBroadcast networks and on Broadcast Multi-Access networks

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21
Q

What config file is stored in RAM?

A

Running Config

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22
Q

what is the metric of a remote network as reported by an EIGRP neighbor called?

A

Advertised Distance

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23
Q

What three items must match exactly in order for an OSPF adjacency to occur between routers?

A
  1. Hello/Dead Timers
  2. Area
  3. IP configuration
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24
Q

How was the following router learned?

D 10.0.0.0/8 [90/2195456] via 172.16.10.2, 00:27:06, Serial 0/0

A

EIGRP

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25
Q

What command will show you the root bridge of VLAN 10?

A

show spanning-tree vlan 10

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26
Q

What is the name for the service that encapsulates PPP frames in Ethernet frames?

A

PPoE

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27
Q

True/False: Passwords are sent in clear text using CHAP

A

False

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28
Q

What command is used to observe the PPP authentication process in real time?

A

debug ppp authentication

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29
Q

Which command will show you the local DLCI to a remote IP address?

A

show frame-relay map

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30
Q

What is a signaling standard used between your router and the first Frame Relay switch it’s connected to?

A

LMI

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31
Q

What Cisco feature efficiently provides a key set of services for IP applications, including network traffic accounting for baselining, usage-based network billing for consumers of network services, network design and planning, general network security, and DoS and DDoS monitoring capabilities as well as general network monitoring>

A

NetFlow

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32
Q

With IPv6, neighbor interfaces and next-hop addresses in the routing table are always what type?

A

Link-Local

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33
Q

What address does OSPFv3 routers use to send messages to the DR?

A

FF02::6

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34
Q

What command produces this output?

OI 2001:DB8:3C4D:15::/64 [110/65]
via FE80::201:C9FF:FED2:5E01, Serial0/0/1
OI 2001:DB8:3C4D:16::/64 [110/65]
via FE80::201:C9FF:FED2:5E01, Serial0/0/1
O 2001:DB8:C34D:11::/64 [110/128]
via FE80::2E0:F7FF:FE13:5E01, Serial0/0/0
OI 2001:DB8:C34D:17::/64 [110/65]
via FE80::2E0:F7FF:FE13:5E01, Serial0/0/0
OI 2001:DB8:C34D:18::/64 [110/65]
via FE80::2E0:F7FF:FE13:5E01, Serial0/0/0

A

sh ipv6 route ospf

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35
Q

How many collision domains exist when using a hub?

A

one collision domain when using a hub

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36
Q

On which layer of the OSI model do routers operate?

A

Network Layer (Layer 3)

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37
Q

What do IP extended access lists use as a basis for permitting or denying packets?

A
  1. Source and Destination Addresses
  2. Source and Destination Ports
  3. Protocols
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38
Q

To specify all hosts in the Class C IP network 192.16.8.0, what wildcard access list mask would you use?

A

0.0.0.255

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39
Q

What access list will allow only web traffic into network 196.15.7.0 from any client?

A

access-list 100 permit tcp any 196.15.7.0 0.0.0.255 eq www

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40
Q

Which router command allows you to determine whether an IP access list is enabled on a particular interface?

A

show ip interface

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41
Q

What router command allows you to view the entire contents of all access lists?

A

show access-lists

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42
Q

What is the IP extended access list range?

A

100-199 and 2000-2699

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43
Q

What is the dotted-decimal equivalent of /15?

A

255.254.0.0

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44
Q

The block size of a /26 network is?

A

64

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45
Q

The output of the show startup-config commands comes from?

A

NVRAM

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46
Q

What standards-based protocol works much like CDP?

A

Link Layer Discovery Protocol (LLDP)

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47
Q

What is the IP loopback address?

A

127.0.0.1

48
Q

What type of cable is used to connect to a console port of a router?

A

a Rolled or Rollover cable

49
Q

What type of Ethernet cable is used to connect from a hub to a switch?

A

Crossover

50
Q

What command is used to send messages to the VTY lines?

A

Terminal monitor

51
Q

What type of SNMP message is used to retrieve information from a device?

A

GET

52
Q

What version of SNMP added the GET BULK message?

A

SNMPv2c

53
Q

What is the collection of information organized hierarchically and accessed by SNMP?

A

Management Information Base (MIB)

54
Q

Which bit in the configuration register is used to tell the router whether to use the contents of NVRAM to load a router configuration?

A

BIT 6

55
Q

What command is used to determine the name and size of the IOS file?

A

show flash

56
Q

What register setting tells the router to bypass the configuration in NVRAM so that you can perform password recovery?

A

Config-register 0x2142

57
Q

Which OSPF state do two routers forming an adjacency appear as in the show ip ospf neighbor output after neighbors are added into the table and Hello info is exchanged?

A

2 WAY

58
Q

What is the metric reported by the neighbor plus the metric to the neighbor reporting the route?

A

Feasible distance

59
Q

What EIGRP table contains all destinations advertised by neighboring routers, holding each destination address and a list of neighbors that have advertised the destination?

A

Topology Table

60
Q

True/False: A feasible successor is a backup route and is stored in the topology table?

A

True

61
Q

What protocol allows you to upgrade the IOS on your router when the router is not connected to any network>?

A

xModem

62
Q

True/False: HDLC is the default serial encapsulation on a Cisco router?

A

True

63
Q

What protocol uses LCP as one of its components?

A

PPP

64
Q

What structure does MPLS use to identify the path to a destination?

A

Labels

65
Q

What command, and at which prompt, is used to enable EIGRPv6 on the Corp router in AS 10?

A

Corp#config t
Corp(config)#ipv6 unicast-routing
corp(config)#int f0/0
Corp(config-if)#ipv6 router eigrp 10

66
Q

At what prompt is the router ID configured in EIGRPv6?

A 
Corp#config t
Corp(config)#ipv6 unicast-routing
Corp(config)#int f0/0
Corp(config-if)#ipv6 router eigrp 10
Corp(config-rtr)#eigrp router-id 10.1.1.1
67
Q

What command is used to determine which interfaces are part of the EIGRPv6 process?

A

show ipv6 eigrp interfaces

68
Q

In the following output, what value is the feasible distance?

P 2001:DB8:C34D:15::/64, 1 successors, FD is 2170112
via FE80::209:7CFF:FE51:B401 (2170112/2816), Serial0/0/1

A

FD is 2170112

69
Q

What type of OSPF router belongs to more than one OSPF area?

A

Area Border Router (ABR)

70
Q

True/False: 1.1.1.1 can be a valid router ID in OSPFv3.

A

True

71
Q

What command, and what prompt, places an interface in area 0 for process 1 using OSPFv3?

A

Corp(config-if)#ipv6 ospf 1 area 0

72
Q

What command will you use to see information about a specific port channel interface?

A

show etherchannel port-channel

73
Q

our new fast switches uses software technology to build and maintain their MAC filter tables. True or False

A

False. Our new fast switches uses application-specific integrated circuits (ASICs) to build and maintain their MAC filter tables

74
Q

Simple Network Management Protocol (SNMP) collects and manipulates valuable network info by polling devices on the network from a network management station (NMS). True or False

A

True. Simple Network Management Protocol (SNMP) collects and manipulates valuable network info by polling devices on the network from a network management station (NMS) at fixed or random intervals, requiring them to disclose certain information, or even asking them for certain info. In addition, network devices can inform NMS about problems as they occur so the network admin is alerted.

75
Q

What protocol can be used to synch the time on network devices?

A

Network Time Protocol (NTP) works by syching devices to ensure that all computers on a given network agree on the time.

76
Q

What term is used when a router looks up the destination in the routing table for every single packet?

A

Process Switching - This process involves looking up every destination in the routing table and finding the exit interface for every packet.

77
Q

What Application layer protocols sets up a secure session that’s similar to Telnet?

A

Secure Shelle (SSH) protocol sets up a secure session that’s similar to Telnet over a standard TCP/IP connection and is employed for doing things like logging into systems, running programs on remote systems, and moving files from one system to another.

78
Q

Which of the following is not an issue addressed by STP?

A. Broadcast storms
B. Gateway redundancy
C. A device running multiple copies of the same frame.
D. Constant updating of the MAC filter table

A

B. Gateway redundancy is not an issue addressed by STP.

79
Q

Ethernet networking uses what protocol to help devices share the bandwidth evenly while preventing two devices from transmitting simultaneously on the same network medium?

A

Carrier Sense Access with Collision Detections (CSMA/CD)

80
Q

What is the first line of defense when securing your network?

A

Physical Security

81
Q

Which of the following would put switch interfaces into EtherChannel port number 1, using LACP? (choose two)

A. Switch(config)#inter port-channel 1
B. Switch(config)#channel-group 1 mode active
C. Switch(config-if)#inter port-channel 1
D. Switch(config-if)#channel-group 1 mode active

A

A. Switch(config)#inter port-channel 1

D. Switch(config-if)#channel-group 1 mode active

82
Q

Layer 2 broadcasts are sent to what?

A

All nodes on a LAN

83
Q

When a packet is routed across a network, the ______ in the frame changes at every hop while the ______ in the packet does note.

A

MAC address, IP address

84
Q

Cisco EtherChannel allows us to bundle up to how many active ports between switches?

A

8 ports

85
Q

Which of the following command options are displayed when you use the Router#show frame-relay ? command (choose three)

A. dlci
B. neighbors
C. lmi
D. pvc
E. map
A

C. lmi
D. pvc
E. map

86
Q

You want to ping the loopback address of your IPv6 local host. What will you type?

A

ping ::1

87
Q

Which command would you place on an interface connected to the Internet?

A. ip nat inside
B. ip nat outside
C. ip outside global
D. ip inside local

A

B. ip nat outside
You must configure your interfaces before NAT will provide any translation. On the outside network interfaces, you will use the command ip nat outside.

88
Q

In reserved IP addressing, the network address is all 1s. What does this mean?

A

A network address of all 1s is interpreted to mean “all networks.”

89
Q

What should you look for when troubleshooting an adjacency issue in EIGRP?

A
  1. Verify AS numbers - EIGRP AS numbers must match.
  2. Verify that you have the proper interfaces enabled for EIGRP.
  3. Make sure there are no mismatched K values.
  4. Check your passive interface settings.
90
Q

In IPv6 expression, which of the following is an acceptable way to shorten the address 2001:0db8:3c4d:0012:0000:0000:1234:56ab?

A

2001:0db8:3c4d:0012::1234:56ab

You can drop any leading zeros in each of the individual blocks. You cannot have multiple double colons, only leading zeros can be omitted.

91
Q

When a router boots up, it performs a POST. Where is the POST located on a router?

A

The POST is stored in and runs from ROM

92
Q

Which VLAN is typically the admin VLAN on a switch?

A

VLAN 1

93
Q

Which of the following statements about IPv6 addresses is true? (choose two)

A. Leading zeros are required
B. Two colons (::) are used to represent successive hexadecimal fields of zeros.
C. Two colons (::) are used to separate fields.
D. A single interface will have multiple IPv6 addresses of different types

A

B. Two colons (::) are used to represent successive hexadecimal fields of zeros.
D. A single interface will have multiple IPv6 addresses of different types.

To shorten the written length of an IPv6 address, successive fields of zeros may be replaced by double colons. In trying to shorten the address further, leading zeros may also be removed. Just as with IPv4, a single device’s interface can have more than one address; with IPv6 there are more types of addresses and the same rule applies. There can be link-local, global unicast, multicast, and anycast addresses all assigned to the same interface.

94
Q

What command can be used on a Cisco router to display the ARP Cache?

A

Router#show ip arp

show ip arp has the same function as arp -a, but displays the ARP table on a Cisco router. Like the commands traceroute and tracert, arp -a and show ip arp are not interchangeable with DOS and Cisco.

95
Q

Which of the following describe the process identifier that is used to run OSPF on a router?

A
  1. It is locally significant
  2. It is needed to identify a unique instance of an OSPF database.

The process ID for OSPF on a router is only locally significant, and you can use the same number on each router or each router can have a different number. The numbers you can use are from 1 to 65,535. Don’t get this confused with area numbers, which can be from 0 to 4.2 billion.

96
Q

What is the default encapsulation used by Cisco routers over synchronous serial links?

A. PPP
B. MPLS
C. HDLC
D. 802.1Q

A

Cisco routers uses HDLC by default over synchronous serial links. Cisco HDLC is the default for data encapsulation at Layer 2 (data link) of the Open System Interconnection (OSI) stack for efficient packet delineation and error control.

PPP (Point-to-Point Protocol) is a protocol for communication between two computers using a serial interface, typically a personal computer connected by phone line to a server. Multiprotocol Label Switching (MPLS) is a mechanism in high-performance telecommunications networks that directs data from one network node to the next based on short path labels rather than long network addresses, avoiding complex lookups in a routing table.

97
Q

The following configuration was made on RouterA. What is the purpose of the PAP authentication configuration?

RouterA#config t
RouterA(config)#int s0
RouterA(config-if)#ppp authentication chap pap

A

If both methods are configured on the same line, only the first method will be used during link negotiation. The second acts as a backup just in case the first method fails.

98
Q

To enable OSPFv3, which of the following would you use?

A

To enable OSPFv3, you enable the protocol at the interface level. The command string is ipv6 ospf process-id area area-id.

99
Q

Which two of the following are true regarding the distance-vector and link-state routing protocols? (Choose two.)

A. Link state sends its complete routing table out of all active interfaces at periodic time intervals.
B. Distance vectors sends its complete routing table out of all active interfaces at periodic time intervals.
C. Link state sends updates containing the state of its own links to all routers in the internetwork.
D. Distance vectors sends updates containing the state of its own links to all routers in the internetwork.

A

B. Distance vectors sends its complete routing table out of all active interfaces at periodic time intervals.
C. Link state sends updates containing the state of its own links to all routers in the internetwork

100
Q

When you’re configuring the clock rate command on a serial interface, it is set in _______ .

A

Bits per second

101
Q

DHCP can provide all of the following but what?

A. IP address
B. Domain Name
C. Default Gateway
D. Computer Name

A

D. Computer Name

102
Q

Which statements are true in regards to both HSRP and GLBP? (Choose two.)

A. VRRP should always be used if possible instead of HSRP or GLBP.
B. HSRP is proprietary, and GLBP should be used with multiple vendors.
C. HSRP can load-balance based on VLANs for which they are active.
D. GLBP can have multiple forwarders with the same subnet/VLAN.
E. HSRP can load-balance on the same LAN.

A

C. HSRP can load-balance based on VLANs for which they are active.
D. GLBP can have multiple forwarders with the same subnet/VLAN.

103
Q

If you want to exclude certain IP addresses from being issued to hosts such as servers or printers by a router configured with DHCP, what command can you use?

A

Router(config)#ip dhcp excluded-address ip addresses

104
Q

Which of the following statements is true with regard to ISL and 802.1q?

A. 802.1q encapsulates the frame with control info; ISL inserts an ISL field along with tag control info.
B. 802.1q is Cisco proprietary.
C. ISL encapsulates the frame with control info; 802.1q inserts an 802.1q field along with tag control info.
D. ISL is a standard.

A

Unlike ISL, which encapsulates the frame with control information, 802.1q inserts an 802.1q field along with tag control information.

105
Q

Standard access lists filter traffic based on what?

A

Standard IP access lists filter network traffic by examining the source IP address in a packet.

106
Q

Overloading is the most popular form of NAT. It is also known as what?

A

PAT - Overloading really is a form of dynamic NAT, which is also known as Port Address Translation (PAT).

107
Q

Which two of the following switch port violation modes will alert you via SNMP that a violation has occurred on a port?

A. Restrict
B. Protect
C. Shutdown
D. Err-Disable

A

Shutdown and Restrict mode will alert you via SNMP that a violation has occurred on a port.

108
Q

Extended access list number ranges are from 100 to 199. True or False

A

False : Extended access list numbers range from 100 to 199 and 2000 to 2699.

109
Q

Which Cisco IOS command is used to verify the port security configuration of a switch port?

A

Router#show port-security interface

110
Q

Which of the following are benefits of using a VPN in your internetwork? (Choose three.)

A. Security
B. Private high-bandwidth links
C. Cost savings
D. Incompatibility with broadband technologies
E. Scalability
A

A. Security, C. Cost savings, E. Scalability

VPNs can provide very good security by using advanced encryption and authentication protocols, which will help protect your network from unauthorized access. By connecting the corporate remote offices to their closest Internet provider and then creating a VPN tunnel with encryption and authentication, you’ll gain a huge savings over opting for traditional leased point-to-point lines.

111
Q

When using NetFlow, what command is used to verify that the correct interfaces in the correct direction have been configured?

A

Router#show ip flow interface

112
Q

When setting up Frame Relay for point-to-point subinterfaces, which of the following must not be configured?

A. the Frame Relay encapsulation on the physical interface.
B. The local DLCI on each subinterface.
C. An IP address on the physical interface.
D. The subinterface type as point-to-point

A

C. An IP address on the physical interface.
It is very important to remember when studying the CCNA R/S exam objectives, and when configuring Frame Relay with point-to-point subinterfaces, that you do not put an IP address on the physical interface.

113
Q

What is a data-carrying mechanism that emulates some properties of a circuit-switched network over a packet-switched network?

A

MultiProtocol Label Switching (MPLS) is a data-carrying mechanism that emulates some properties of a circuit-switched network over a packet-switched network.

114
Q

Of the following, what are some of the things that commonly cause LAN traffic congestion? (Choose three.)

A. Too many hosts in a collision or broadcast domain
B. Broadcast storms
C. Too much multicast traffic
D. High bandwidth

A

LAN traffic congestion is commonly caused by the following:

  1. Too many hosts in a collision or broadcast domain
  2. Broadcast storms
  3. Too much multicast traffic
  4. Low bandwidth
115
Q

What are the minimum factors a router must know to be able to effectively route packets?

A. Destination address
B. Possible routes to all remote networks
C. The best route to each remote network
D. Neighbors routers
E. B and C
F. all of the above
A

F. All of the Above

The minimum factors a router must know to be able to effectively route packets are destination address, neighbor routers from which it can learn about remote networks, possible routes to all remote networks, the best route to each remote network, and how to maintain and verify routing information.

116
Q

Which two of the following commands are required when configuring SSH on your router? (Choose two.)

A. enable secret password
B. exec-timeout 0 0
C. ip domain-name name
D. username name password password
E. ip ssh version 2
A

C. ip domain-name name
D. username name password password
To configure SSH on your router, you need to set the username, the IP domain name, the local login, the transport input SSH command, the crypto key command, and under the VTY lines and the crypto key command. SSH version 2 is suggested but not required.

117
Q

Which of the following is true regarding WAN technologies? (Choose three.)

A. You must use PPP on a link connecting two routers using a point-to-point lease line.
B. You can used a T1 to connect a customer site to the IPS.
C. You can use a T1 to connect a Frame Relay connection to the ISP.
D. You can use Ethernet as a WAN service by using EoMPLS.
E. When using an Ethernet WAN, you must configure the DLCI.

A

B. You can used a T1 to connect a customer site to the IPS.
C. You can use a T1 to connect a Frame Relay connection to the ISP.
D. You can use Ethernet as a WAN service by using EoMPLS.
PPP does not need to be used, so option A is not valid. You can use any type of connection to connect to a customer site, so option B is a valid answer. You can also use any type of connection to get to the Frame Relay switch, as long as the ISP supports it, and T1 is valid, so option C is okay. Ethernet as a WAN can be used with Ethernet over MPLS (EoMPLS); however, you don’t need to configure a DLCI unless you’re using Frame Relay, so E is not a valid answer.

CCNA ICND 1,2 Practice Questions (2 decks)

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