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RobsCCNA > Sybex CCNA Flashcards > Flashcards

Sybex CCNA Flashcards

1
Q

Which component of the routing table ranks routing protocols according to their preferences?

A

Administrative distance

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2
Q

What process is associated with spanning-tree convergence?

A

Electing designated ports

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3
Q

True/False. Intelligent DNS can redirect user requests to locations that are using fewer network resources.

A

True

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4
Q

What is the purpose of traffic policing?

A

It drops traffic that exceeds the CIR.

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5
Q

Which dynamic routing protocol uses only the hop count to determine the best path to a destination?

A

RIP

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6
Q

A transmitting host MAC address is not in the MAC table of a switch. What will the switch will do when it receives the frame from the host?

A

The switch will add the source address and port to the MAC address table and forward the frame to the destination host if known; if not, it
will flood the frame.

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7
Q

How can you disable DTP on a switch port?

A

(DynamicTunking protocol)
Change the operational mode to static access.

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8
Q

On which type of device is every port in the same collision domain?

A

A hub

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9
Q

Which route source code represents the routing protocol with a default administrative distance of 90 in the routing table?

A

D

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10
Q

What is one requirement for interfaces to run IPv6?

A

An IPv6 address must be configured on the interface.

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11
Q

What configuration must you apply to enable encapsulation on a sub-interface?

A

Answer Example (can use any numbers from 1-4094):
interface FastEthernet 0/0.30
encapsulation dotIQ 30
ip address 10.1.1.30 255.255.255.0 (confirm)

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12
Q

Which type of interface can negotiate an IP address for a PPPoE client?

A

Dialer

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13
Q

Which feature can you use to monitor traffic on a switch by replicating it to another port or ports on the same switch?

A

SPAN

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14
Q

Which destination IP address can a host use to send one message to multiple devices across different subnets?

A

A multicast address. Range is 224.0.0.0 through 239.255.255.255

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15
Q

What is the default lease title for a DHCP binding?

A

24 hours

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16
Q

Index Load Port EC state No of bits
0 36 Gil/1 Active 3
1 84 Gil/2 Active 3
2 16 Gil/3 Active 2
You executed the show interface port-channel 1 etherchannel command. What information is provided by the Load value?

A

The preference of the link

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17
Q

Which MTU size can cause a baby giant error?

A

1600 bytes

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18
Q

Which device allows users to connect to the network using a single or double radio?

A

Access point

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19
Q

What is a difference between TACACS+ and RADIUS in AAA?

A

Only TACACS+ allows for separate authentication

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20
Q

True/False. Cisco Discovery Protocol traffic travels on the native VLAN by default.

A

True

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21
Q

Which component of the Cisco SDN solution serves as the centralized management system?

A

Cisco APIC (Application Policy Infrastructure Controller)

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22
Q

At which layer of the OSI model does the protocol that provides the information that is displayed by the
show cdp neighbors command operate?

A

Data Link

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23
Q

A workstation has just resolved a browser URL to the IP address of a server. Which protocol will the workstation now use to determine the MAC address to be placed into frames directed toward the server?

A

ARP

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24
Q

Which switch states are valid for 802.1w?

A

Discarding, learning, forwarding

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25
Q

Which value is indicated by the next hop in a routing table?

A

IP address of the remote router for forwarding the packets

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26
Q

What is the best way to verify that a host has a path to other hosts in different networks?

A

Ping the default gateway.

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27
Q

What is the first step you perform to configure an SNMPv3 user?

A

Configure the server group.

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28
Q

True/False. TCP provides synchronized communication

A

True

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29
Q

Which routing protocol has the default administrative distance of 90?

A

EIGRP

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30
Q

MPLS operates at what layer?

A

It operates between layer 2 and layer 3.

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31
Q

Which RFC was created to alleviate the depletion of IPv4 public
addresses?

A

1918

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32
Q

Which EIGRP for IPv6 command can you enter to view the link-local addresses of the neighbors of a device?

A

show ipv6 eigrp neighbors

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33
Q

Configuration of which option is required on a Cisco switch for the Cisco IP phone to work?

A

A voice VLAN ID in interface and global configuration mode

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34
Q

Which part of the PPPoE server configurator contains the information used to assign an IP address to a PPPoE client?

A

Virtual Template Interface

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35
Q

True/False. WLC’s Gold queue is also known as the video queue.

A

True

36
Q

When a router makes a routing decision for a packet that is received from one network and destined to another, which portion of the packet is replaced?

A

Layer 2 frame header and trailer

37
Q

Which type of switch ports drop packets with 802.1Q tags?

A

Access ports

38
Q

Which component of a routing table entry represents the subnet mask?

A

Prefix

39
Q

True/False. Named ACLs support only extended ACLs.

A

False

40
Q

True/False. This is a valid hostname for a switch following Cisco’s guidelines: 5witch-Cisco.

A

False

41
Q

When enabled, which feature prevents routing protocols from sending hello messages on an interface?

A

Passive-interface
Or you can shutdown the port

42
Q

Which feature allows a device to use a switch port that is configured for half-duplex to access the network?

A

CSMA/CD

43
Q

Which NTP command configures the local device as an NTP reference clock source?

A

ntp master

44
Q

On a Cisco switch, which protocol determines if an attached VoIP phone is from Cisco or from another vendor?

A

CDP

45
Q

True/False. When a switch in rapid PVST+ mode has a topology change, the switch immediately deletes dynamic MAC addresses that were learned by all ports on the switch.

A

False. It deletes all MAC addresses in that one VLAN instance.

46
Q

What protocol supports sharing the VLAN configuration between two or more switches?

A

VTP

47
Q

Which option must occur before a workstation can exchange HTTP packets with a web server?

A

A TCP connection must be established between the workstation and the web server.

48
Q

Two hosts are attached to a switch with the default configuration. How many broadcasts are there?

A

One

49
Q

True/False. Routers perform this on a packet: Update the layer 3 headers of outbound packets so that the packets are properly directed to their ultimate destinations.

A

False. They update the layer 2 headers of outbound packets with the MAC addresses of the next hop.

50
Q

Which technology supports the stateless assignment of IPv6

A

Autoconfiguration

51
Q

Describe slow inter-VLAN forwarding.

A

The local VLAN is working normally, but traffic to the alternate VLAN is forwarded more slowly than expected.

52
Q

Which type of topology is required by DMVPN?

A

Hub and spoke

53
Q

Which network topology allows all traffic to flow through a central hub?

A

Star

54
Q

True/False. RIP is a link-state routing protocol.

A

False

55
Q

True/False. DTP uses the native VLAN to send data

A

True

56
Q

By default, how many MAC addresses are permitted to be learned on a switch port with port security enabled?

A

1

57
Q

True/False. Routers perform this on a packet: Examine the layer 3 headers of inbound packets and use that information to determine the next hops for the packets.

A

True

58
Q

True/False. TCP provides sequence numbering of packets

A

True

59
Q

Which function enables an administrator to route multiple VLANs on a router?

A

Router on a stick

60
Q

What is a benefit of switch stacking?

A

It provides higher port density with better resource usage.

61
Q

Which NAT type is used to translate a single inside address to a single outside address?

A

Static NAT

62
Q

What are two enhancements that OSPFv3 supports over OSPFv2?

A

It can support multiple IPv6 subnets on a single link, and it routes over links rather than over networks.

63
Q

True/False. Tracert uses ICMP packets.

A

True

64
Q

Which protocol authenticates connected devices before allowing them to access the LAN?

A

802.1x

65
Q

True/False. When configuring static routes, an exit interface can be specified to indicate where the packets will be routed.

A

True

66
Q

Under which circumstance should a network administrator implement one-way NAT?

A

When the network has few public IP addresses, and many private IP addresses require outside Internet access

67
Q

What can cause collision domain issues on VLAN domain?

A

Congestion on the switch inband path, BS duplex mismatches on Ethernet segments in the same VLAN

68
Q

Which method does a connected trunk port use to tag VLAN traffic?

A

IEEE 802.1Q

69
Q

Which IEEE standard does PVST+ use to tunnel information?

A

802.1q

70
Q

Which identification numbers are valid for an extended ACL?

A

100-199

71
Q

Which Cisco platform can verify ACLs?

A

Cisco APIC-EM

72
Q

True/False. IP SLAs are used to determine the frequency of ICMP packets.

A

True

73
Q

What is a valid HSRP virtual MAC address?

A

Look for the 07.AC in the address, such as: 0000.0C07.AC15

74
Q

Which two states are the port states when RSTP has converged?

A

Discarding, forwarding

75
Q

Which version of SNMP first allowed user-based access?

A

SNMPv1

76
Q

Which address type does a switch use to make selective forwarding decisions?

A

Destination MAC address

77
Q

True/False. OSPF is a link-state routing protocol.

A

True

78
Q

What are two drawbacks of implementing a link-state routing protocol?

A

The requirement for a hierarchical IP addressing scheme for optimal functionality, and high demand on router resources to run the link- state routing algorithm

79
Q

What is the subnet and broadcast address of this host: 10.16.3.65/23?

A

10.16.2.0 255.255.254.0, 10.16.3.255 255.255.254.0

80
Q

True/False. EIGRPV6 needs a RID under the routing process.

A

True

81
Q

Which spanning-tree feature places a port immediately into a forwarding state?

A

PortFast

82
Q

WLANS default to the ________queue, which effectively means no QoS is being utilized

A

Silver

83
Q

What is the default VLAN on an access port?

A

VLAN 1

84
Q

You enter the show ipv6 route command on a router and the device displays a route. What routing protocol is used?

A

OSPFV3

85
Q

True/False. If the destination MAC address is unknown, the frame is flooded to every port that is in the same VLAN, except the port it was received on.

A

True

86
Q

True/False. Video traffic is passed with a well-known DSCP value of 46.

A

True

RobsCCNA (13 decks)

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