Networking 005 Part 6

1. A natural disaster has occurred and the administrator must return the network to a healthy status. Which of the following should the administrator do in this case?

Follow the emergency action plan.

Wait for an issue to be reported.

Establish a new baseline

Determine if escalation is necessary.

2. Which of the following metrics indentifies the number of connections that is between two devices?

Hop count

MTU

Latency

Bandwidth

3. In which of the following topologies could the failure of one machine cause the entire network to stop functioning?

Mesh

Token ring

Star

Spanning tree

4. At which of the following layers does the UDP protocol operate?

Layer 1

Layer4

Layer 6

Layer 7

5. Which of the following denotes the FINAL point of responsibility for a service provider?

66 block

Patch panel

Wiring closet

Demarc

6. After 100 meters (328 feet), CAT6 cabling is known to experience which of the following symptoms?

Signal loss

Signal bleed

Data collision

Crosstalk

7. At which of the following does the telephone company's responsibility cease?

66 block

Demarc

110 block

MDF

8. An administrator has added a new access point to the network to provide additional coverage. A heat-map survey shows coverage now extends beyond company property and is interfering with other wireless networks in the area. How should the administrator modify the new installation to stop the interference?

Turn down the transmission strength of the access point.

Replace the antenna with a smaller one.

Change the wireless password to a more complex one.

Change the SSID of the access point

9. Users report an intermittent degradation of sound on their IP phones. Which of the following would a network administrator do to alleviate the problem?

Use plenum cables

Provide fault tolerance for the switch

Configure VLAN trunking on the switch

Configure QoS

10. Which of the following should be used to test an internal NIC without having to connect it to the network?

Loopback cable

Crossover cable

Rollover cable

Straight cable

11. When verifying a new wireless installation the administrator is unable to see a wireless signal with any wireless laptop. The MOST likely problem is:

The SSID is not set to broadcast

An incorrect channel is being used

Incorrect client security settings are configured

Incorrect client configuration on the laptops

12. Which of the following layers of the OSI model is the presentation layer?

Layer 1

Layer 5

Layer 6

Layer 7

13. The T568B wiring standard slates that CAT5 cables should be coded as follows:

White/Orange, Orange, White/Green, Green, Blue, White/Blue, White/Brown, Brown

White/Orange, Orange, White/Green, Blue, White/Blue, Green, White/Brown, Brown,

White/Orange, Orange, \White/Green, Green, White/Blue, Blue, White/Brown, Brown

White/Orange, Orange, White/Green, Blue,

14. A user reports that their laptop does not have network connectivity, but was working fine last week. The technician executes IPCONFIG to see what the IP address is but it comes up with a 169.254.254.1 address. This address is not part of the company's subnet. Which of the following MOST likely identifies this address type?

Multicast

DHCP

APIPA

Broadcast

15. An administrator has found interference on a network. Which of the following cable types is the network MOST likely composed of?

UTP

Fiber

RG-6

STP

16. A small business with eight employees has just opened their office in a renovated loft in a busy downtown area. The owner of the building does not want to run any additional wiring beyond power, to preserve the historic nature of the building. Because of this stipulation, almost all tenants in the building have chosen to implement wireless. Which of the following should be the FIRST step in setting up this SOHO network?

Run a wireless site survey

Speak to tenants to determine their telephone standards.

Install and configure a Gigabit switch.

Determine the operating system versions

17. A user receives a call from someone reporting to be from the help desk who asks for their password. The user discovers later that the caller did not work for the help desk. Which of the following describes this type of exploit?

Phishing scam

Social engineering

Man-in-the-Middle

Shoulder surfing

18. Which of the following connector types is commonly identified by two rows of pins with four in one row and five in the other?

DB-9

RJ-45

SC

BNC

19. Which of the following commands would allow a computer to acquire an IP address?

Ipconfig/release

Ipconfig/renew

Ipconfig/all

Ipconfig/help

20. Which of the following network devices would MOST likely be installed on a network to help reduce broadcast traffic and to allow individual virtual networks?

Switch

Repeater

Hub

WAP

21. Which of the following protocols can be used to retrieve system and network performance information from a router?

LDAP

IMAP

TFTP

SNMP

22. In an environment with STP disabled, which of the following is the MOST likely cause of the exponential increase in repeated packets transferred through the network?

Incorrect subnet mask

Mismatched MTU

Switching loop

VLAN mismatch

23. Which of the following wireless standards has a MAXIMUM throughput, by default, of 11Mbps?

802.11g

802.11a

802.1 n

802.11b

24. Which of the following protocols is commonly used by ping?

SIP

ICMP

TFTP

ARP

25. 802.11g wireless signals operating at 24GHz has a maximum line of sight range of which of the following?

460 feet (140 meters

540 feet (165 meters)

560 feet (171 meters

840 feet (256 meters

26. Which of the following WAN technologies has the GREATEST latency and is not recommended for VoIP?

ISDN

DSL

Satellite

Cable

27. Which of the following tools can be used to identify the location of a network outage?

Traceroute

Netstat

Nslookup

Ping

28. A technician is working on a SOHO wireless network and notices that the wireless adaptor in the laptop shows excellent connection at 11Mbps. The technician has a wireless N adaptor. Which of the following would BEST describe this connection speed?

The laptop is too far away from the WAP.

The WAP is using 802.11a frequencies

The laptop is only set to allow 802.11n connections

The technician is on an 802.11b network

29. Which of the following address formats uses 32-bit addressing?

IPv4IPv4

MAC address

IPv6

Host address

30. Which of the following mitigation techniques would an administrator apply to a device in order to restrict remote access?

Disable TELNET

Disable IGMP snooping

Enable TELNET but not SSL

Disable ICMP/ping on device

31. A client is having problems connecting remotely after replacing a router. An administrator has just created an action plan. Which of the following is the NEXT step the administrator should perform to resolve this issue?

Implement and test the solution.

Determine if escalation is necessary.

Identify the affected areas of the network.

Identify the results and effects of the solution

32. Which of the following WAN protocols is a packet switching technology?

Frame Relay

POTS

PSTN

ISDN

33. Physical and logical network diagrams are used for which of the following configuration management goals?

Track DHCP distribution

Compare MAC and IP addresses

Document Internet access history

Identity network devices

34. Which of the following is used to reduce the number of public IP addresses required?

RADIUS

SNAT

PAT

NAT

35. How many bits are in an IPv6 address?

32

64

128

256

36. Which of the following does not affect security on a wireless access point?

Encryption

DHCP

Password

SSID

37. A computer is able to ping other devices on the same network but is unable to ping devices on another network. Which of the following needs to be configured?

DNS primary server

Host route

Proxy ARP

Default gateway

38. When ordering aT1 line, the network technician tells the telecommunications company that a particular device is not needed since it is built-in to the router's T1 port. Which of the following devices is the technician referring to?

CSU/DSU

ATM

TDR

DWDM

39. Switch A is configured with VLAN 105 and 106. Switch Bis configured with VLAN 105 and 107. Both switches are connected with a fiber cable. In order for packets from all VLANs to cross the fiber cable, which of the following configurations MUST be present?

Reverse ARP

Full duplex on the fiber link

PoE

802.1q trunking

40. Users are reporting problems connecting to servers in the remote company.com domain. The administrator suspects this to be a DNS problem. Which of the following commands would the administrator run to identify the DNS server of the remote company.com?

Dig company.com ns

Ipconfig/all

Ifconfig-a

Dig company.com mx

41. An administrator needs to terminate network cables that have just been installed in the main communications closet. Which of the following tools is required?

Multimeter

Snips

Toner probe

Punch down tool

42. The "1000" in 1000BaseT cabling represents which of the following?

The theoretical maximum cable length

The theoretical maximum bandwidth

The theoretical port limit of the cable

The quality level of the copper wiring used

43. Which of the following devices can be installed on individual computers throughout the network?

NIPS

Network-based firewall

VPN concentrator

Host-based firewall

44. Which of the following would be used to lock all of the primary communication equipment of a building, including its demarcation point?

MTR

MDF

Smartjack

IDF

45. Which of the following cable types has a MAXIMUM transmission speed of 10Mbps?

CAT6

CAT5

Single-mode fiber

CAT3

46. Which of the following has a maximum data rate of 11Mbps?

802.11n

802.11g

802.11b

802.11a

47. Which of the following networks are reserved for private IP addresses?

168.129.00/24

172.16.128.0/15

192.168.0.0/16

162.17.0.0/12

48. A technician temporarily needs an additional network connection in their office to test a new workstation. Which of the following is the BEST solution to add a temporary network connection?

Install a small network switch

Use port mirroring on the switch

Split the pairs of the existing jack

Install a CSU/DSU

49. An administrator is implementing a wireless network. Which of the following encryption technologies is the MOST secure method and will authenticate devices to the network?

SSH

WEP

VPN

WPA

50. For security reasons a network technician wants to install a Linux based email server, Microsoft web services, and directory services on different servers. Which of the following technologies would be BEST to reduce hard ware costs?

VPN concentrator

Virtual servers

Wireless

Multimode fiber

51. Interior gateway protocols are used for resolving routes:

Between networks

Within routers

Within networks

Between WAPs

52. A technician wants to use an existing DHCP server for three additional VLANs. Which of the following features needs to be configured to allow for this addition?

DHCP server

Proxy server

Repeater

DHCP relay

53. Which of the following services can an administrator use to reduce latency and prioritize the flow of data?

Fault tolerance

RADIUS

Qos

Load balancing

54. Which of the following OSI model layers is used for logical addressing?

Physical

Transport

Network

Data link

55. A stateless firewall requires a technician to:

Write more packet filters.

Write less packet filters.

Purchase a license for states

Upgrade definitions manually

56. Which of the following is used to create multiple networks from one large network?

PAT

NAT

Multicast

Subnetting

57. Which of the following tools allows an administrator to determine the MAC address of another computer?

Ping

Arp

Ifconfig

Ipconfig

58. Which of the following is a TRUE statement about static routing vs. dynamic routing?

Dynamic routing is created adhoc and static routing cannot be changed once implemented

Static routing is hard-coded and requires significant administrative overhead for large networks.

Static routing requires little administrative overhead and dynamic routing requires significantadministrative overhead

Dynamic routing is the best solution for small networks and static routing is the best solution forlarge scale networks.

59. Which of the following wireless technologies can operate at only 5GHz?

802.11b/g

802.11g

802.11b

802.11a

60. Which of the following is the full range of address block 192.16876.0/23?

192.168.76.0-192.168.77.255

192.168.76.0-192.168.76.255

192.168.76.0-192.168.76.23

192.168.76.0-192.168.78 0

61. Two autonomous networks who wish to exchange routing data should use which of the following protocols?

OSPF

BGP

EIGRP

IS-IS

62. Which of the following restricts network access to a router administrator's interface?

IDS

SSL

ACL

SMNPv2

63. Link aggregation is also known as port:

Distribution

Mirroring

Spanning

Trunking

64. A VPN connection is not working correctly and the technician is unable to ping the VPN server. Which of the following actions should the technician do FIRST?

Call their local ISP

Verify the IP information of the server

Check their local Internet connection

Verify the hostname of the server

65. Which of the following has the HIGHEST data rate speed?

T1

ADSL

SDSL

OC-3

66. Which of the following protocols defaults to port 161?

SFTP

SNMP

SMTP

SNTP

67. Which of the following technologies was designed to provide the FASTEST data rates over analog phone lines?

RADSL

SONET

ADSL

MPLS

68. Kerberos is a form of user authentication that:

Provides users access to network resources

Performs router commands after user authentication.

Provides users with remote access only capabilities

Does not require an authentication server

69. Determining when to retransmit frames is an example of which of the following Ethernet properties?

Carrier sense

Collision detection

Multiple access points

Collision avoidance

70. A user is trying to connect their new desktop to the network but is unable to get an IP address. The technician tests the cable and finds that there are too many open pairs. Which of the following wiring standards needs to be used in the replacement cable?

568B

Crossover

569-A

607-A

71. An administrator needs to know the workstation name of a user who called in for support in order to remotely manage it. After calling the user and having the user open a command prompt, which of the following commands would the administrator ask the user to type?

Netstat

Ifconfig

Hostname

Ping

72. A network at a small business utilizes a star topology and is experiencing frequent collisions among data packets. Which of the following devices is MOST likely being used?

Unmanaged switch

Hardware firewall

Hub

Managed switch

73. Which of the following is the MOST secure method to enable remote users to access a company's internal network resources?

VPN concentrator

Network-based firewall

DMZ

Stateful firewall

74. Multiple users call from the same location saying that they have no network connectivity. The administrator is unable to ping the main switch at that IDF. Which of the following configuration management documents would the administrator MOST likely consult to troubleshoot the issue?

Baseline configuration

Security policy

Performance and transaction logs

Physical network diagram

75. Which of the following is the MOST efficient way to troubleshoot network problems?

Create an action plan

Implement and test a solution

Determine if anything has changed

Identity a probable cause

76. Computers on a small network are not able to receive new addresses from the DHCP server. However, the administrator has checked the server and ensured it is connected, responding, and functional. Which of the following is the MOST likely problem in this scenario?

The DHCP server has an incorrect gateway configured

The DHCP server was incorrectly configured with a six hour lease time on addresses

The DHCP server was incorrectly configured with no-expiring lease time on addresses.

The DNS server is no longer functional and internal name-address resolution is down

77. Which of the following routing protocols is strictly a distance vector protocol?

IS-IS

BGP

EIGRP

OSPF

78. Using network monitoring tools would allow an administrator to do which of the following?

Configure offline devices

Examine performance issues

Install additional software and updates

View syslog events

79. A company finished upgrading the wireless encryption to WPA2 Enterprise. The administrator receives a call from a user who is unable to connect to the company wireless. Which of the following is MOST likely causing the connection problem?

The laptop is missing the software supplicant

The access point SSID is hidden.

The laptop only supports TKIP and AES encryption,

The access point is on the wrong channel

80. Which of the following devices allows multiple internal IP addresses to access an external website with minimal impact to the network bandwidth?

Proxy

Load balancer

Router

Bandwidth shaper

81. When debugging a routing problem, the time-to-live (TTL) value can be used to determine:

Number of routes available.

Number of router hops

Time that an advertised route is valid.

Time to make a round trip.

82. Which of the following commands is used to display other computers running on the network?

Hostname

Ipconfig

Net view

Nslookup

83. Users are reporting that they are still experiencing network issues even though a fix was recently applied. Which of the following troubleshooting methodology steps is the administrator using?

Escalating the problem

Testing the solution and identifying the effects

Continuing to gather information about the same symptoms

Documenting the solution and the entire process

84. A technician is troubleshooting a network connectivity issue with a user's desktop configured to use a static IP address. The technician notes the following configuration: IP 172.16.2.0 NETMASK 255.255.254.0 DEFAULT GATEWAY 172.16.1.1 DNS 192.168.1.1 Which of the following changes will allow the desktop to communicate properly with remote networks?

Changing the DNS to 172.16.1.100

Changing the WINS server to 172.174.136

Changing the netmask to 255.255.255.0

Changing the default gateway to 1 72.16.3.1

85. An administrator is troubleshooting wireless connectivity issues at a client's office and discovers that the machine loses connectivity when the wireless phone is being used. Which of the following WAPS should be installed to help resolve the issue?

802.1 1g

802.1X

802.11n

802.11b

86. A technician at a company providing online, real-time media streaming to the Internet needs a network technology that will reduce bandwidth while delivering high throughput. Which of the following can the technician implement to fit these requirements?

Subnetting

Unicast

Broadcast

Multicast

87. Which of the following wireless standards was the FIRST standard to be ratified and is used to support legacy wireless devices?

802.11a

802.11g

802.11b

802.11n

88. Two business partners have recently been connected via a dedicated extranet. It has been discovered that each of the companies are using the same private IP address space. Which of the following will help to resolve potential routing issues?

Multicast

PAT

CIDR

NAT

89. Which of the following layers is associated with the physical hardware address of a network node?

Layer 1

Layer 2

Layer 6

Layer 7

90. A small office in which all workstations are using an ISP provided IP range has noticed a consistent decrease in network traffic speed. The decrease does not occur when the gateway to the ISP is disconnected. Which of the following should the administrator implement?

Multicast addressing

Load balancing

Address translation

DHCP

91. Which of the following should be changed to secure access to a WAPs configuration management interface?

SSID

WPA2

DHCP

Password

92. Which of the following WAN protocols is a circuit switching technology?

ISDN

SONET

Frame Relay

ATM

93. A technician needs to ensure that a specific application on a single home user's computer receives Internet traffic reliably. The home network provides access to three other users and the application relies on a specific protocol. Which of the following should the technician use?

DHCP

PAT

Proxy

IPX

94. Which of the following monitors a server to see which protocols might be in use?

Ping sweep

Intrusion detection software

Port scanner

Wireless packet sniffer

95. Which of the following wireless standards can be used to avoid the 2.4GHz range? (Select TWO).

802.11g

802.1X

802.11b

802.1 m

802.11a

Submit

96. An administrator wants to limit access of a wireless network without requiring authorized users to enter a password or network key. Which of the following methods would MOST likely be implemented on the wireless network?

Disable SSID

WPA

MAC filtering

RAS

97. Which of the following is the MOST likely authentication scheme used in 802.1x?

CHAP

RADIUS

TACACS+

Kerberos

98. Several users are sending emails to CompTIA.org. but they are not being received. Which of the following commands could be used to verify that the company is able to connect to the mail service at CompTIA.org?

Ping

Arp

Dig

Telnet

99. Web users are reporting issues downloading various types of media. Which of the following should the administrator do FIRST?

Find out what has recently changed on the network

Create an action plan and solution identifying potential effects.

Continue to gather information and see what other problems may exist.

Determine the most probable cause.

100. Which of the following improves wireless performance by allowing only one wireless transmission on the network at a time?

CSMA/CA

CSMA/CD

Wireless encryption

Wireless bonding

Networking 005 Part 6

1. A natural disaster has occurred and the administrator must return the network to a healthy status. Which of the following should the administrator do in this case?

2.

What first name or nickname would you like us to use?

2. Which of the following metrics indentifies the number of connections that is between two devices?

3. In which of the following topologies could the failure of one machine cause the entire network to stop functioning?

4. At which of the following layers does the UDP protocol operate?

5. Which of the following denotes the FINAL point of responsibility for a service provider?

6. After 100 meters (328 feet), CAT6 cabling is known to experience which of the following symptoms?

7. At which of the following does the telephone company's responsibility cease?

9. Users report an intermittent degradation of sound on their IP phones. Which of the following would a network administrator do to alleviate the problem?

10. Which of the following should be used to test an internal NIC without having to connect it to the network?

11. When verifying a new wireless installation the administrator is unable to see a wireless signal with any wireless laptop. The MOST likely problem is:

12. Which of the following layers of the OSI model is the presentation layer?

13. The T568B wiring standard slates that CAT5 cables should be coded as follows:

15. An administrator has found interference on a network. Which of the following cable types is the network MOST likely composed of?

17. A user receives a call from someone reporting to be from the help desk who asks for their password. The user discovers later that the caller did not work for the help desk. Which of the following describes this type of exploit?

18. Which of the following connector types is commonly identified by two rows of pins with four in one row and five in the other?

19. Which of the following commands would allow a computer to acquire an IP address?

20. Which of the following network devices would MOST likely be installed on a network to help reduce broadcast traffic and to allow individual virtual networks?

21. Which of the following protocols can be used to retrieve system and network performance information from a router?

22. In an environment with STP disabled, which of the following is the MOST likely cause of the exponential increase in repeated packets transferred through the network?

23. Which of the following wireless standards has a MAXIMUM throughput, by default, of 11Mbps?

24. Which of the following protocols is commonly used by ping?

25. 802.11g wireless signals operating at 24GHz has a maximum line of sight range of which of the following?

26. Which of the following WAN technologies has the GREATEST latency and is not recommended for VoIP?

27. Which of the following tools can be used to identify the location of a network outage?

28. A technician is working on a SOHO wireless network and notices that the wireless adaptor in the laptop shows excellent connection at 11Mbps. The technician has a wireless N adaptor. Which of the following would BEST describe this connection speed?

29. Which of the following address formats uses 32-bit addressing?

30. Which of the following mitigation techniques would an administrator apply to a device in order to restrict remote access?

31. A client is having problems connecting remotely after replacing a router. An administrator has just created an action plan. Which of the following is the NEXT step the administrator should perform to resolve this issue?

32. Which of the following WAN protocols is a packet switching technology?

33. Physical and logical network diagrams are used for which of the following configuration management goals?

34. Which of the following is used to reduce the number of public IP addresses required?

35. How many bits are in an IPv6 address?

36. Which of the following does not affect security on a wireless access point?

37. A computer is able to ping other devices on the same network but is unable to ping devices on another network. Which of the following needs to be configured?

38. When ordering aT1 line, the network technician tells the telecommunications company that a particular device is not needed since it is built-in to the router's T1 port. Which of the following devices is the technician referring to?

39. Switch A is configured with VLAN 105 and 106. Switch Bis configured with VLAN 105 and 107. Both switches are connected with a fiber cable. In order for packets from all VLANs to cross the fiber cable, which of the following configurations MUST be present?

40. Users are reporting problems connecting to servers in the remote company.com domain. The administrator suspects this to be a DNS problem. Which of the following commands would the administrator run to identify the DNS server of the remote company.com?

41. An administrator needs to terminate network cables that have just been installed in the main communications closet. Which of the following tools is required?

42. The "1000" in 1000BaseT cabling represents which of the following?

43. Which of the following devices can be installed on individual computers throughout the network?

44. Which of the following would be used to lock all of the primary communication equipment of a building, including its demarcation point?

45. Which of the following cable types has a MAXIMUM transmission speed of 10Mbps?

46. Which of the following has a maximum data rate of 11Mbps?

47. Which of the following networks are reserved for private IP addresses?

48. A technician temporarily needs an additional network connection in their office to test a new workstation. Which of the following is the BEST solution to add a temporary network connection?

49. An administrator is implementing a wireless network. Which of the following encryption technologies is the MOST secure method and will authenticate devices to the network?

50. For security reasons a network technician wants to install a Linux based email server, Microsoft web services, and directory services on different servers. Which of the following technologies would be BEST to reduce hard ware costs?

51. Interior gateway protocols are used for resolving routes:

52. A technician wants to use an existing DHCP server for three additional VLANs. Which of the following features needs to be configured to allow for this addition?

53. Which of the following services can an administrator use to reduce latency and prioritize the flow of data?

54. Which of the following OSI model layers is used for logical addressing?

55. A stateless firewall requires a technician to:

56. Which of the following is used to create multiple networks from one large network?

57. Which of the following tools allows an administrator to determine the MAC address of another computer?

58. Which of the following is a TRUE statement about static routing vs. dynamic routing?

59. Which of the following wireless technologies can operate at only 5GHz?

60. Which of the following is the full range of address block 192.16876.0/23?

61. Two autonomous networks who wish to exchange routing data should use which of the following protocols?

62. Which of the following restricts network access to a router administrator's interface?

63. Link aggregation is also known as port:

64. A VPN connection is not working correctly and the technician is unable to ping the VPN server. Which of the following actions should the technician do FIRST?

65. Which of the following has the HIGHEST data rate speed?

66. Which of the following protocols defaults to port 161?

67. Which of the following technologies was designed to provide the FASTEST data rates over analog phone lines?

68. Kerberos is a form of user authentication that:

69. Determining when to retransmit frames is an example of which of the following Ethernet properties?

70. A user is trying to connect their new desktop to the network but is unable to get an IP address. The technician tests the cable and finds that there are too many open pairs. Which of the following wiring standards needs to be used in the replacement cable?

71. An administrator needs to know the workstation name of a user who called in for support in order to remotely manage it. After calling the user and having the user open a command prompt, which of the following commands would the administrator ask the user to type?

72. A network at a small business utilizes a star topology and is experiencing frequent collisions among data packets. Which of the following devices is MOST likely being used?

73. Which of the following is the MOST secure method to enable remote users to access a company's internal network resources?

74. Multiple users call from the same location saying that they have no network connectivity. The administrator is unable to ping the main switch at that IDF. Which of the following configuration management documents would the administrator MOST likely consult to troubleshoot the issue?

75. Which of the following is the MOST efficient way to troubleshoot network problems?

76. Computers on a small network are not able to receive new addresses from the DHCP server. However, the administrator has checked the server and ensured it is connected, responding, and functional. Which of the following is the MOST likely problem in this scenario?

77. Which of the following routing protocols is strictly a distance vector protocol?

78. Using network monitoring tools would allow an administrator to do which of the following?

79. A company finished upgrading the wireless encryption to WPA2 Enterprise. The administrator receives a call from a user who is unable to connect to the company wireless. Which of the following is MOST likely causing the connection problem?

80. Which of the following devices allows multiple internal IP addresses to access an external website with minimal impact to the network bandwidth?