TEST 6 Flashcards

1
Q

Users on a LAN segment are reporting a loss of connectivity to network services. The client PCs have been assigned with 169.254.X.X IP addresses. Which of the following IP address schemas is being utilized?

A. Private IP
B. Static IP
C. APIPA
D. Loopback

A

C. APIPA

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2
Q

A network administrator has created a new VLAN for the server and clients within the accounting department and wants to outline how it integrates with the existing network. Which of the following should the administrator create?

A. Logical diagram
B. Physical diagram
C. Rack diagram
D. Configuration diagram

A

A. Logical diagram

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3
Q

Which of the following would indicate that a circuit speed should be increased?

A. Low latency
B. Low bandwidth consumption
C. High number of SIEM alerts
D. High packet drops

A

D. High packet drops

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4
Q

A technician has installed an older IP camera as a temporary replacement for a recently failed newer one. The technician notices that when the cameras video stream is off, the ping roundtrip time between the camera and the network DVR is consistently less than 1ms without dropped packets. When the camera video stream is turned on, the ping roundtrip time increases dramatically, and network communication is slow and inconsistent. Which of the following is MOST likely the issue in this scenario?

A. VLAN mismatch
B. Duplex mismatch
C. Cat 6 RX/TX reversed
D. Damaged cable

A

B. Duplex mismatch

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5
Q

Wireless users have been experiencing connectivity problems. Investigation shows neighboring wireless appliances, which are not connected to the network, have been on the same 5GHz frequency to communicate. Which of the following wireless performance problem concepts defines this issue?

A. Interference
B. Distance limitation
C. Signal-to-noise ratio
D. Absorption

A

A. Interference

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6
Q

Which of the following BEST explains the purpose of signature management as a mitigation technique?

A. Hardening devices
B. Segmenting the network
C. Detecting malicious activity
D. Restricting user credentials

A

C. Detecting malicious activity

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7
Q

A network technician installs a web server on the firewall. Which of the following methods should the technician implement to allow access to outside users without giving access to the inside network?

A. VLAN
B. DMZ
C. SNMP
D. NTP

A

B. DMZ

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8
Q

A Chief Information Officer (CIO) tasks the network engineer with protecting the network from outside attacks. Placing which of the following devices on the network perimeter would provide the MOST security for the system?

A. Firewall
B. NGFW
C. Content filter
D. IDS/IPS

A

B. NGFW

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9
Q

Management has requested that a wireless solution be installed at a new office. Which of the following is the FIRST thing the network technician should do?

A. Order equipment
B. Create network diagrams
C. Perform a site survey
D. Create an SSID.

A

C. Perform a site survey

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10
Q

A technician has deployed an additional DHCP server for redundancy. Clients in certain subnets are not receiving DHCP leases from the new DHCP server. Which of the following is the MOST likely cause?

A. The new DHCP servers IP address was not added to the routers IP helper list.
B. The new DHCP server is not receiving the requests from the clients.
C. The ARP cache of the new DHCP server needs to be updated.
D. The ARP table on the router needs to be cleared.

A

A. The new DHCP servers IP address was not added to the routers IP helper list.

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11
Q

Greater bandwidth and availability are required between two switches. Each switch has multiple 100Mb Ethernet ports available. Which of the following should a technician implement to help achieve these requirements?

A. Spanning tree
B. Clustering
C. Power management
D. Port aggregation

A

D. Port aggregation

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12
Q

A technician is configuring a new server with an IP address of 10.35.113.47 on the 10.35.112.0 subnet to allow for the maximum number of hosts. When configuring network settings, which of the following is the correct subnet mask?

A. 10.35.112.0/30
B. 10.35.112.0/24
C. 255.255.240.0
D. 255.255.248.0
E. 255.255.255.0
A

C. 255.255.240.0

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13
Q

Ann, a customer, recently upgraded her SOHO Internet to gigabit fiber from cable. She was previously getting speeds around 75Mbps down and 25Mbps up. After the upgrade, Ann runs a speed test on her desktop and gets results of 1000Mbps down and 100Mbps up. A technician connects directly to the router and sees the correct 1000Mbps speeds. Which of the following is MOST likely the cause? (Select two).

A. All ports should be configured for full duplex.
B. There is a 10/100 switch on the network.
C. The connections are using Cat 5 cable.
D. The connections are using Cat 6 cable.
E. There is a transceiver mismatch at the fiber termination point.
F. Signal attenuation on the new fiber has reached the upper limits.

A

A. All ports should be configured for full duplex.

C. The connections are using Cat 5 cable.

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14
Q

A user reports intermittent performance issues on a segment of the network. According to the troubleshooting methodology, which of the following steps should the technician do NEXT after collecting initial information from the customer?

A. Document findings, actions, and outcomes.
B. Establish a theory of probable cause.
C. Establish a plan of action to resolve the problem.
D. Duplicate the problem, if possible.

A

D. Duplicate the problem, if possible.

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15
Q

Which of the following protocols is associated with a three-way handshake?

A. UDP
B. ICMP
C. GRE
D. TCP

A

D. TCP

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16
Q

Which of the following would a company place at the edge of its network if it wants to view and control which Internet applications are being used?

A. VPN concentrator
B. NGFW
C. IDS/IPS
D. Proxy server

A

B. NGFW

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17
Q

A technician wants to physically connect two office buildings networks. The office buildings are located 600ft (183m) apart. Which of the following cable types is the BEST choice?

A. Cat 5e
B. Cat 6a
C. Multimode
D. Coaxial

A

C. Multimode

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18
Q

A network engineer at a multinational company is asked to purchase mobile phones for senior executives who often travel internationally. The executives want their phones to work with wireless carriers in multiple countries when they travel. Which of the following cellular standards should these new phones support?

A. GSM
B. TDM
C. CDMA
D. PSTN

A

A. GSM

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19
Q

Which of the following should a network administrator use to configure Layer 3 routes? (Select TWO).

A. Multilayer switch
B. Firewall
C. Hub
D. Bridge
E. Modem
F. Media converter
A

A. Multilayer switch

B. Firewall

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20
Q

While logged into a financial application, a user gets errors when trying to write to the database. The network administrator is not familiar with the application and how it communicates with the database. Which of the following documentation types should the network administrator use to troubleshoot the data flow?

A. Logical diagram
B. Physical diagram
C. Network baseline
D. Change management log

A

A. Logical diagram

21
Q

Joe, a network engineer, is attempting to install wireless in a large work area. He installs the access point in the middle of the work space. When testing, he notices a -60dB reading on one side of the room and a -92dB reading on the other side. Which of the following is MOST likely the issue?

A. External interference
B. Distance limitations
C. Channel overlap
D. Incorrect antenna type

A

D. Incorrect antenna type

22
Q

A network technician wants to address PCs on a subnet with IPv6 in addition to IPv4. The subnet currently uses a DHCP server that only supports IPv4. Which of the following should the technician use to assign IPv6 addresses automatically without DHCP?

A. APIPA
B. MAC reservations
C. EUI-64
D. IPv4 to IPv6 tunnel

A

C. EUI-64

23
Q

A technician is establishing connectivity through a VPN for remote server access. Which of the following protocols should be utilized to configure this VPN connection securely?

A. IPSec
B. IGRP
C. L2TP
D. PPTP

A

A. IPSec

24
Q

A network technician receives a request for a disaster recovery solution. Management has requested no downtime in the event of a disaster. Which of the following recovery solutions is the appropriate choice?

A. Hot site
B. Business continuity
C. File backups
D. Virtual snapshot

A

B. Business continuity

25
Q

A network technician receives a new firmware update for a network device. The technician wants to ensure the file has not been tampered with. Which of the following techniques should the technician use to ensure the integrity of the file?

A. Cyclic redundancy check
B. System integrity check
C. Hash comparison
D. Root guard

A

C. Hash comparison

26
Q

Which of the following should be configured on the network to achieve performance for the FCoE storage traffic?

A. PoE
B. DHCP snooping
C. Jumbo frames
D. Virtual IP

A

C. Jumbo frames

27
Q

A network administrator wants to narrow the scope of a subnet to two usable IP addresses within a class C network. Which of the following is the correct CIDR notation?

A. 10.10.50.0/30
B. 172.16.20.0/30
C. 192.1.0.124/30
D. 192.168.0.192/24
E. 192.170.10.0/24
A

C. 192.1.0.124/30

28
Q

A network technician notices that most of the nodes in the 10.10.74.0/23 address space return either 1 or 2 node hop after running a tracert, however, some of the new servers are showing a hop count larger than 10. Which of the following is the MOST likely reason for this?

A. New servers are being provisioned in the cloud.
B. Those servers have host-based firewalls.
C. Some of the servers are configured to use different gateways.
D. Part of the subnet is configured to use different VLANs.

A

A. New servers are being provisioned in the cloud.

29
Q

A technician has a remote site that often has congestion issues. When this happens, the remote router cannot be managed using SSH because the session drops. Which of the following is a possible solution to the issue?

A. Out-of-band management
B. HTTPS management URL
C. Client-to-site VPN
D. Router ACL

A

A. Out-of-band management

30
Q

A technician has installed multiple new PC clients and is connecting them to the network. Only one client is receiving IP addressing information. Which of the following should the technician verify as the NEXT troubleshooting step?

A. DHCP scrope
B. DHCP lease
C. Default gateway
D. DNS zone

A

A. DHCP scrope

31
Q

Which of the following WAN technologies swaps the header on a packet when internally switching from one provider router to another?

A. ATM
B. Frame relay
C. MPLS
D. PPP

A

C. MPLS

32
Q

A network administrator is purchasing a mobile phone for a manager who is traveling internationally. The phone needs to be able to make and receive calls in multiple countries outside of North America. Which of the following cellular technologies should the administrator look for in the phone?

A. CDMA
B. GSM
C. TDMA
D. CSMA

A

B. GSM

33
Q

A network administrator is downloading a large patch that will be uploaded to several enterprise switches simultaneously during the days upgrade cycle. Which of the following should the administrator do to help ensure the upgrade process will be less likely to cause problems with the switches?

A. Confirm the patchs MD5 hash prior to the upgrade.
B. Schedule the switches to reboot after an appropriate amount of time.
C. Download each switchs current configuration before the upgrade.
D. Utilize FTP rather than TFTP to upload the patch.

A

C. Download each switchs current configuration before the upgrade.

34
Q

A network technician is segmenting network traffic into various broadcast domains. Which of the following should the network technician utilize?

A. VLAN
B. STP
C. ACL
D. BPDU

A

A. VLAN

35
Q

After rebooting a PC, a user is no longer able to connect to the corporate network. As a test, the technician plugs a different laptop into the same network jack and receives an IP address of 169.254.112.137. Which of the following is MOST likely causing the issue?

A. DHCP scope exhaustion
B. Improper DNS setting
C. Incorrect ACL setting
D. Port-security violation

A

A. DHCP scope exhaustion

36
Q

A network administrator is concerned about clients being able to access the local Internet while connected to the corporate VPN. Which of the following should be disabled on the client to prevent this?

A. TLS
B. Remote file access
C. Split tunneling
D. HTTPS

A

C. Split tunneling

37
Q

A network technician travels to a remote office to set up a new SOHO for the company. Wireless networking should be used at the remote office. The network technician sets up all the related wireless network equipment, and the last step is to connect the users devices to the company network. To complete this step, which of the following should be used to secure the remote network location?

A. Host-based firewalls
B. WPA2/WPA
C. Open access
D. Port filtering

A

B. WPA2/WPA

38
Q

The length of an IPv6 address is:

A. 32 bits
B. 64 bits
C. 128 bits
D. 256 bits

A

C. 128 bits

39
Q

A network technician is troubleshooting a problem with a users client-to-site VPN connection. The user is unable to establish a connection to the server, but the error message that appears on screen does not contain useful information. Which of the following should the technician do NEXT to troubleshoot the issue?

A. Reconfigure the users VPN connection in the router to fix profile corruption.
B. Inform the user that provisioning sometimes fails and the connection needs to be attempted again.
C. Review the logs in the VPN client to check for any informational messages.
D. Verify the system has the latest OS patches installed.

A

C. Review the logs in the VPN client to check for any informational messages.

40
Q

Management requires remote access to network devices when the ISP is down. Which of the following devices would provide the BEST solution?

A. Router
B. Firewall
C. Bridge
D. Modem

A

D. Modem

41
Q
A network technician installed a new host on the network. The host is not connecting to the companys cloud servers. The technician attemtps to ping a server using the AP address with no success. Checking the IP address using ipconfing displays:
IP address 10.10.23.231
Subnet mask: 255.255.192.0
Default gateway: 10.10.20.1
DNS1: 11.11.11.11
DNS2: 11.11.11.12

Which of the following should the technician perform NEXT to determine where the issue is located?

A. Modify the default gateway address and ping the server to test connectivity.
B. Change the DNS servers to be on the same subnet as the host.
C. Modify the routers ACL to allow port 80 to exit the network.
D. Perform a tracert command to locate where the packet is dropped.

A

D. Perform a tracert command to locate where the packet is dropped.

42
Q

A network technician is performing a firmware upgrade on a switch. The firmware needs to be downloaded to the device. Which of the following methods should the technician use to retrieve the updated firmware?

A. RDP
B. SSH
C. TFTP
D. Telnet

A

C. TFTP

43
Q

A network technician is assisting a user who is experiencing connectivity problems with the VPN. The technician has confirmed the VPN is functioning and other users at the site cannot access the Internet. Which of the following commands would MOST likely be used to further troubleshoot?

A. tracert
B. netstat
C. arp
D. dig

A

A. tracert

44
Q

Which of the following MUST be installed on an employees computer if the remote access VPN implements an SSL VPN with PKI authentication?

A. Shared secret
B. HTTPS server
C. Soft spoken
D. Private certificate

A

D. Private certificate

45
Q

Which of the following default ports should be opened on a firewall to allow for SSH and Telnet? (Select TWO)

A. 21
B. 22
C. 23
D. 25
E. 123
F. 443
A

B. 22

C. 23

46
Q

Two computers are connected to a multilayer switch, and both can access the corporate file server. The computers cannot talk to one another. Which of the following is MOST likley the cause?

A. Duplex/speed mismatch
B. ACL misconfiguration
C. Bad port
D. Crosstalk

A

B. ACL misconfiguration

47
Q

A user calls the help desk for assistance with setting up a new SOHO router. The user has three employees who all have laptops that need to connect to the wireless network. The users need to have firewall rules allowing access to an internal server, but cannot be configured with static IP addresses. Which of the following BEST describes what the technician should implement?

A. CNAME record in the users dynamic DNS accounts
B. Additional lease time for the laptop computers
C. IP helper relay system for configuration hops
D. DHCP reservation for the laptops MACs

A

D. DHCP reservation for the laptops MACs

48
Q

A home user is unable to get to the Internet from a workstation that is connected to a wireless network. When reviewing the results of the ipconfig command, the user wants to verity the default gateway is correct. Which of the following devices should be the gateway?

A. Cable modem
B. SOHO router
C. DNS server
D. Layer 2 switch

A

A. Cable modem

49
Q

A technician is troubleshooting intermittent connectivity on a line-of-sight wireless bridge. Which of the following tools should the technician use to determine the cause of the packet loss?

A. Spectrum analyzer
B. OTDR
C. Packet sniffer
D. Multimeter

A

A. Spectrum analyzer