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ICND1 (CCENT) > ICND1 - Study Guide 1 > Flashcards

ICND1 - Study Guide 1 Flashcards

1
Q

In what ways is a hub different from a switch?

a. A hub increases the amount of collision domains
b. A hub tracks IP addresses
c. A hub tracks MAC addresses
d. A hub consists of only one collision domain

A

d. A hub consists of only one collision domain

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2
Q

What a user wants to retrieve a file from the FTP server, what must happen first?

a. A UDP based connection needs to be stood up between the user and the router.
b. A TCP based connection needs to be stood up between the FTP server and user.
c. A UDP based connection needs to be stood up between the FTP server and user.
d. A TCP based connection needs stood up between the user and router.

A

b. A TCP based connection needs to be stood up between the FTP server and user.

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3
Q

How is TCP different from UDP? (Choose 2)

a. TCP is best effort
b. TCP uses multicast delivery
c. TCP uses synchronized communication with devices
d. TCP uses sequence numbers and acknowledgement numbers for reliability
e. TCP uses the datagram segments

A

c. TCP uses synchronized communication with devices
d. TCP uses sequence numbers and acknowledgement numbers for reliability

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4
Q

You connect to a local server on your network by using a URL/name. After this has completed, you next need to figure out what the destination MAC address is. Which protocol is used for this determination?

a. RARP
b. DNS
c. HTTP
d. ARP
e. Inverse ARP

A

d. ARP

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5
Q

What destination MAC address is used with ARP when a host needs to contact another host for the first time on a different network?

a. 192.168.0.1
b. 255.255.255.255
c. 01-44-9a-3a-ad-5c
d. 01-22-9a-41-aa-6f
e. ff-ff-ff-ff-ff-ff

A

e. ff-ff-ff-ff-ff-ff

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6
Q

What are three TCP applications? (Choose 3)

a. TFTP
b. FTP
c. RTP
d. HTTP
e. DNS
f. SNMP
g. SMTP

A

b. FTP
d. HTTP
g. SMTP

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7
Q

How does a trunk port tag traffic?

a. 802.1D
b. 802.1E
c. 802.1Q
d. 802.1P

A

c. 802.1Q

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8
Q

Which two statements are true about CSMA/CD? (Choose 2)

a. All devices in the collision domain must wait for the line to be free before transmitting.
b. After a collision has occurred, the first station that saw the collision goes first.
c. After a collision has occurred, all devices run a random backoff algorithm before checking so they can transmit.
d. All devices run the same backoff algorithm after a collision, then check the line to see if it is clear.

A

a. All devices in the collision domain must wait for the line to be free before transmitting.
c. After a collision has occurred, all devices run a random backoff algorithm before checking so they can transmit.

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9
Q

Based on the following output, how will the switch handle the frame?

SOURCE MAC: 00e0.8f3e.ee9a

DESTINATION MAC: 00e0.8f3e.ee90

SOURCE IP: 10.0.0.4

DESTINATION IP 10.0.0.5

a. Forward the frame out f0/2
b. Drop the frame
c. Flood the frame out all ports
d. Forward the frame out f0/3
e. Flood the frame out all ports except f0/3

A

e. Flood the frame out all ports except f0/3

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10
Q

What will the switch do when it receives a frame from PC D? (Choose 1)

a. Flood the frame out all ports.
b. Flood the frame out all ports except f0/4.
c. Drop the frame.
d. Add the MAC of PC D to the mac address table.

A

d. Add the MAC of PC D to the mac address table.

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11
Q

What command is used to suspend a telnet session?

a. Ctrl+shift
b. Cmd+shift+6
c. Ctrl+shift+6 X
d. Ctrl+alt+shift+x

A

c. Ctrl+shift+6 X

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12
Q

What default gateway should PC-0 have assigned?

a. 10.0.0.6
b. 10.0.0.2
c. 192.168.0.1
d. 172.16.0.1
e. 10.0.0.1
f. 10.0.0.5

A

d. 172.16.0.1

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13
Q

Which of the below are true based on the following diagram? (Choose 3)

a. The cloud icon in Region 2 is a HUB
b. The cloud icon in Region 2 is a switch
c. The cloud icon in Region 1 is a HUB
d. The cloud icon in Region 1 is a switch
e. There are 5 collision domains
f. There are 4 collision domains
g. There are 3 collision domains

A

a. The cloud icon in Region 2 is a HUB
d. The cloud icon in Region 1 is a switch
e. There are 5 collision domains

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14
Q

How can I reduce broadcast storms? (choose 2)

a. Implement a HUB
b. Implement a Router
c. Implement a Switch
d. Implement a Firewall
e. Implement an ACL
f. Implement a layer 3 switch

A

b. Implement a Router
f. Implement a layer 3 switch

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15
Q

How does a host handle a frame on a layer 2 network in which it has no layer 2 address?

a. Drop the frame
b. Flood the frame out all ports
c. Initiate an ARP request with the destination IP address
d. Send the frame to the switch for routing

A

c. Initiate an ARP request with the destination IP address

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16
Q

Based on the following diagram what is the outcome? (Choose 2)

a. SW1 will flood the frame out all ports
b. SW1 will drop the frame
c. SW1 will add CCCC.CCCC.CCCC to the MAC table
d. SW1 will flood the frame out F0/2, F0/3, and F0/4
e. SW1 will flood the frame out F0/2 only

A

c. SW1 will add CCCC.CCCC.CCCC to the MAC table
d. SW1 will flood the frame out F0/2, F0/3, and F0/4

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17
Q

A switch has 24 ports and VLAN 58,59, and 175. How many collision/broadcast domains exist?

a. 24 collision / 3 broadcast
b. 24 broadcast / 3 collision
c. 24 collision / 1 broadcast
d. 1 collision / 24 broadcast

A

a. 24 collision / 3 broadcast

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18
Q

What type of address does a switch use to make forwarding decisions?

a. Source MAC address
b. Source IP Address
c. Destination MAC Address
d. Destination IP address
e. Source and Destination IP address
f. Source and Destination MAC Address

A

c. Destination MAC Address

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19
Q

On a layer 2 Cisco switch, how can I tell if a device is from Cisco or some other heathen brand?

a. RTP
b. VTP
c. DTP
d. CDP
e. NTP
f. UDP

A

d. CDP

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20
Q

How can I enable the switch to ping the laptop?

a. Enable IP routing on the layer 2 switch.
b. Configure a default-gateway on the laptop
c. Enable RIP on the router
d. Configure a default gateway on the switch.

A

d. Configure a default gateway on the switch.

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21
Q

You issue a show cdp neighbors detail command to find an IOS that a switch is using. You also discover the IP management address as well as it’s capabilities. What layer does the protocol operate on that showed you this information?

a. Physical
b. Network
c. Transport
d. Session
e. Data-link
f. Application
g. Presentation

A

e. Data-link

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22
Q

What are some characteristics of a layer 2 switch? (Choose 2)

a. Capable of routing traffic from one VLAN to another internally
b. Capable of implementing VLANs per port
c. Decreases broadcast domains
d. Increases collision domains

A

b. Capable of implementing VLANs per port
d. Increases collision domains

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23
Q

Which command will show me the layer 1 and 2 status of an interface?

a. Show version
b. Show protocols
c. Show run
d. Show flash
e. Show controllers

A

b. Show protocols

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24
Q

What does the access-layer typically have configured? (Choose 2)

a. VLANs per port
b. Port-security
c. Layer 3 routing
d. Etherchannel for redundancy
e. Power over Ethernet

A

a. VLANs per port
b. Port-security

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25
Q

Assigning an IP address to a layer 2 switch accomplishes which of the following?

a. Enables layer 3 routing
b. Enables layer 2 routing
c. Enables ARP
d. Enables remote management

A

d. Enables remote management

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26
Q

A full duplex network requires: (Choose 2)

a. A full duplex capable network card
b. A port for each device needing to connect
c. A hub to expand the network
d. No collisions

A

a. A full duplex capable network card
b. A port for each device needing to connect

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27
Q

How can I see the current status (layer 1 and layer 2) of serial 0/0/2?

a. Show run
b. Show version
c. Show ip route
d. Show interfaces

A

d. Show interfaces

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28
Q

What is the subnet address of 192.168.3.41/29?

a. 192.168.3.32
b. 192.168.3.40
c. 192.168.3.41
d. 192.168.3.24
e. 192.168.3.48

A

b. 192.168.3.40

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29
Q

An engineer has assigned you a subnet of 192.168.0.24/30. Which two addresses could be used for hosts on the network? (Choose 2)

a. 192.168.0.25
b. 192.168.0.24
c. 192.168.0.0
d. 192.168.0.27
e. 192.168.0.28
f. 192.168.0.26

A

a. 192.168.0.25
f. 192.168.0.26

30
Q

Which IP address could be assigned to R3 if 192.168.0.0 /26 was the given network? The point to point links are not part of the network subnetting.

a. 192.168.0.128
b. 192.168.0.1
c. 192.168.0.65
d. 192.168.0.0
e. 192.168.0.129
f. 192.168.0.159

A

e. 192.168.0.129

31
Q

What is the network address of 172.16.2.5/23?

a. 172.16.2.0
b. 172.16.1.0
c. 172.16.0.0
d. 172.16.0.4
e. 172.16.0.8

A

a. 172.16.2.0

32
Q

Which of the following are true about 10.0.100.128/25? (Choose 2)

a. The network is 10.0.100.0
b. The broadcast is 10.0.100.255
c. The network is classful
d. The first assignable host in the subnet is 10.0.100.128
e. The last assignable host in the subnet is 10.0.100.254

A

b. The broadcast is 10.0.100.255
e. The last assignable host in the subnet is 10.0.100.254

33
Q

How many assignable hosts are in a /29?

a. 8
b. 4
c. 2
d. 7
e. 6

A

e. 6

34
Q

How can I check the configuration of a router before saving it to NVRAM?

a. Show start
b. Show nvram:
c. Show run
d. Show protocols

A

c. Show run

35
Q

Which of the following are true about CDP? (Choose 3)

a. It is layer 3
b. It detects cisco devices across the network
c. It is a layer 2 protocol for inter-vlan routing on a switch
d. It is a layer 3 protocol for inter-vlan routing on a switch
e. It is layer 2
f. It is a cisco proprietary protocol
g. Directly connected cisco devices will be detected

A

e. It is layer 2
f. It is a cisco proprietary protocol
g. Directly connected cisco devices will be detected

36
Q

Which of the following would be revealed with a show CDP neighbor command from the perspective of R1?

a. SW2, SW3, SW1, R2
b. SW2, R2
c. SW1, SW3
d. R2, SW1
e. SW3, SW1, R2
f. R2, SW3

A

d. R2, SW1

37
Q

What must I do at the minimum to get CDP working?

a. Configure the switch and router with the cdp enable command
b. Perform a no shut on Fa0/1
c. Configure an IP address on G0/1
d. Configure G0/1 with the no shut command
e. Configure Fa0/1 with a VLAN
f. Configure Fa0/1 with the no shut command

A

d. Configure G0/1 with the no shut command

38
Q

Based on the diagram, why did the first ping fail on the switch?

a. There was a connection issue between R1 and SW1
b. ARP needed to resolve the MAC to IP
c. The routing table on R1 needed a moment to find the connected route
d. The Switch needed to check it’s mac address table.
e. SW1 needed to resolve the IP to a MAC address for R1

A

e. SW1 needed to resolve the IP to a MAC address for R1

39
Q

What are some things a router must do with packets? (Choose 2)

a. Determine the next hop address
b. Switch the packet to the appropriate egressing interface
c. Examine the ARP table for the route
d. Check to see if the address is operational
e. Determine if the connection is a TCP or UDP connection and then forward the packet out that connection that is established.

A

a. Determine the next hop address
b. Switch the packet to the appropriate egressing interface

40
Q

What are some things a router must do with packets? (Choose 2)

a. Determine the next hop address
b. Switch the packet to the appropriate egressing interface
c. Examine the ARP table for the route
d. Check to see if the address is operational
e. Determine if the connection is a TCP or UDP connection and then forward the packet out that connection that is established.

A

a. Determine the next hop address
b. Switch the packet to the appropriate egressing interface

41
Q

Which of the following is true if the ip route statement was applied to R2?

a. R1 will forward any packets unknown out its s0/3/0
b. R2 will forward any frames unknown out s0/0/0
c. R1 will forward any frames unknown to 10.0.0.1
d. R2 will forward any packets unknown to 10.0.0.1

A

d. R2 will forward any packets unknown to 10.0.0.1

42
Q

What protocol does traceroute use?

a. TCP
b. UDP
c. STP
d. ICMP

A

d. ICMP

43
Q

A gigabit switch is placed on a network to permit hosts from two different vlans to connect to each other but they are unable to communicate, what is the problem?

a. A layer 3 switch was used
b. The cabling is incorrect, as the hosts are using straight through cables.
c. A hub is needed, not a switch.
d. The technician should put a layer 3 device in.

A

d. The technician should put a layer 3 device in.

44
Q

What does the administrative distance indicate?

a. The distance of a route from one point to another.
b. The trustworthiness of a route.
c. The administrative cost of a route from one point to another.
d. The bandwidth of a link.

A

b. The trustworthiness of a route.

45
Q

An administrator has configured NAT with overload, what is the end result?

a. Multiple hosts will use multiple private IP addresses to translate.
b. One host will use one IP address for translating.
c. Many inside hosts will use one public IP for translation.
d. Many outside hosts will use on private IP for translation.

A

c. Many inside hosts will use one public IP for translation.

46
Q

What happens when a host uses the NAT configuration with PAT and initiates a SSH connection to a router?

a. The host will translate their IP to a public IP for communication to the outside.
b. The host will translate their IP to a public IP and use a UDP port.
c. The host will translate their public IP and use a TCP port to identify the connection.
d. The host will translate their private IP to a public IP with no port number.

A

c. The host will translate their public IP and use a TCP port to identify the connection.

47
Q

The interface going towards the Internet in NAT is considered what?

a. Inside local
b. Outside local
c. Outside global
d. Inside global

A

d. Inside global

48
Q

Why would a technician configure the ip helper-address command?

a. The DHCP server is down
b. The DHCP server is local and needs relayed.
c. The DHCP server is on a remote subnet and needs flooded.
d. The DHCP server is local and the request needs routed.
e. The DHCP server is remote and the request needs relayed.

A

e. The DHCP server is remote and the request needs relayed.

49
Q

Why would the service password-encryption command be configured?

a. To prevent the passwords from being seen in clear text.
b. To prevent the passwords from being encrypted.
c. To prevent the passwords from using MD5 hashing.
d. To prevent the passwords from using MD7 hashing.

A

a. To prevent the passwords from being seen in clear text.

50
Q

Which command would enable the MAC addresses learned on a switch to be put into the running-configuration?

a. Static configuration of the MAC
b. Port security with the Sticky keyword
c. Port security with the Dynamic keyword
d. Static configuration with Sticky
e. Static configuration with Dynamic

A

b. Port security with the Sticky keyword

51
Q

A hotel has deployed an Internet café in their lobby. The hotel owner is concerned about security of the network in relation to the desktops that are installed. What could be done to ensure proper security? (Choose 3)

a. Set port security to protect mode.
b. Set port security to sticky MAC
c. Configure the ports as an access port.
d. Configure the MAC addresses statically
e. Enable CDP
f. Enable STP
g. Enable port security

A

c. Configure the ports as an access port.
d. Configure the MAC addresses statically
g. Enable port security

52
Q

An administrator is attempting to telnet into a switch on a remote site. A technician recently configured the switch as shown below. What should be changed in order to successfully telnet into the switch for management? (Choose all that apply)

a. Change the default gateway to 10.0.0.129
b. Set line con 0 with a password
c. Change the VLAN IP address to a usable address.
d. Change line vty 0 4 to login.
e. No changes are needed.

A

a. Change the default gateway to 10.0.0.129
d. Change the line vty 0 4 to login.

53
Q

Sporadic connection issues when a host is on a network due to congestion is most likely caused by what?

a. Half duplex operation
b. Full duplex operation
c. Multicast flooding
d. Broadcast storms

A

d. Broadcast storms

54
Q

Based on the diagram what can be concluded? (Choose 3)

a. The connection between R1 and R2 is using to many addresses.
b. The connection between R2 and SW3 should be a trunk.
c. The subnet for Region 1 is too large for the required amount of users.
d. The device for REGION 3 should use a switch instead of a hub.
e. REGION 1 does not have a large enough subnet for the required users.
f. REGION 2 does not have a large enough subnet.

A

a. The connection between R1 and R2 is using to many addresses.
d. The device for REGION 3 should use a switch instead of a hub.
e. REGION 1 does not have a large enough subnet for the required users.

55
Q

Which layer of the OSI model contains a destination IP address of a device that is located on another network?

a. Data-Link
b. Physical
c. Transport
d. Network
e. Session

A

d. Network

56
Q

If we replaced hubs with switches, what would no longer be present?

a. Broadcast domains
b. Ethernet broadcasts
c. STP
d. Collisions

A

d. Collisions

57
Q

Based on the diagram, PC1 sent a packet to PC2 what is the source and destination physical address as it is leaving R2? (CHOOSE 2)

a. Source: EFEF.EFEF.EFEF
b. Source: ABAB.ABAB.ABAB
c. Source: AAAA.AAAA.AAAA
d. Source: BBBB.BBBB.BBBB
e. Source: CCCC.CCCC.CCCC
f. Destination CDCD.CDCD.CDCD
g. Destination CCCC.CCCC.CCCC
h. Destination EEEE.EEEE.EEEE
i. Destination EFEF.EFEF.EFEF
j. Destination DDDD.DDDD.DDDD

A

d. Source: BBBB.BBBB.BBBB
g. Destination CCCC.CCCC.CCCC

58
Q

Which network device operates only at layer 1?

a. Switch
b. Router
c. Bridge
d. Hub

A

d. Hub

59
Q

Which layer of the OSI model deals with flow control, sequence numbers, acknowledgement numbers, and ports?

a. Layer 1
b. Layer 2
c. Layer 4
d. Layer 3
e. Layer 7
f. Layer 6

A

c. Layer 4

60
Q

Based on the following snippet, what would occur if a packet came into the router destined for 10.0.10.4?

a. The router would forward the packet out Serial 3/1
b. The router would forward the packet out G2/0
c. The router would run ARP to determine the next destination IP address
d. The router would drop the packet
e. The router would send the packet back out the interface in which it was received.

A

d. The router would drop the packet

61
Q

What is the administrative distance of EIGRP?

a. 90
b. 110
c. 120
d. 1
e. 0

A

a. 90

62
Q

How is EIGRP shown on the routing table?

a. O
b. C
c. L
d. D
e. E

A

d. D

63
Q

Why would a router only have one static route pointing to the next hop?

a. It is a core router
b. It is a stub router
c. It is a RIP router
d. It would not have one static route

A

b. It is a stub router

64
Q

Based on the following snippet, what is wrong?

a. Layer 1 is down and must be checked
b. Layer 3 is down and must be checked
c. The wrong type of cable is in use
d. Both sides of the serial have the same IP address
e. One side of the serial link is shutdown
f. The encapsulation is wrong

A

f. The encapsulation is wrong

65
Q

Which of the following is an IPv6 address?

a. 2001:1112::102a:6acf9:98G2
b. ::ffh1
c. ::
d. 2001:32cd::3391:1231:acdc:5443::1
e. 2001:9000:1222:ccd3:a217:cf44:3321:2001:13d2

A

c. ::

66
Q

An IPv6 address has how many bits per character?

a. 1
b. 4
c. 8
d. 128
e. 16
f. 12

A

b. 4

67
Q

What command ensures IP addresses are not handed out as part of a DHCP pool?

a. Ip dhcp excluded
b. Ip dhcp no-address
c. Ip dhcp excluded-pool
d. Ip dhcp excluded-network /xx
e. Ip dhcp excluded-address

A

e. Ip dhcp excluded-address

68
Q

What occurs on a switch when there is a speed mismatch from one port to another device?

a. The port is up/down
b. The port is up/up
c. The port is admin down/down
d. The port is down/up
e. The port is down/down
f. The port goes half-duplex

A

e. The port is down/down

69
Q

What is the process called when a host receives too much data and must slow down the speed at which it receives data?

a. Windowing
b. Framing
c. Sizing
d. TCP
e. Back-off algorithm

A

a. Windowing

70
Q

What is wrong? (Choose 2)

a. Nothing
b. The cable should be a straight through
c. The subnet mask on PC2 should be 255.255.255.0
d. The IP on PC2 needs to be changed to be in the network of PC1
e. The subnet mask on PC1 is incorrect
f. The cable should be a crossover cable
g. Nothing is wrong

A

d. The IP on PC2 needs to be changed to be in the network of PC1
f. The cable should be a crossover cable

71
Q

What layer 2 protocol prevents loops on switches?

a. STP
b. DTP
c. VTP
d. DHCP
e. NTP

A

a. STP

72
Q

You configure a default route on a router but after issuing a “show ip route” it is not in the routing table, why?

a. The route was not added
b. The network is not responding to ICMP pings
c. The ISP is blocking your connection
d. The interface for the default route is down

A

d. The interface for the default route is down

ICND1 (CCENT) (13 decks)

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