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CompTIA Network + ET > TEST 7 > Flashcards

TEST 7 Flashcards

1
Q

Which of the following should be configured to allow for IP-to-name resolutions?

A. CNAME
B. A
C. PTR
D. NS

A

C. PTR

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2
Q

When configuring a new switch in a packet-switched network, which of the following helps protect against network loops?

A. Spanning tree
B. Flood guard
C. BPDU guard
D. DHCP snooping

A

A. Spanning tree

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3
Q

A company has just installed a new cloud VoIP solution, however, users occasionally report poor call quality or dead air being present. Which of the following describes the NEXT troubleshooting step the technician should take?

A. The technician should check the internal diagnostics on all the phones to look for a common thread.
B. The technician should reset all the phones and deprovision information from the provider
C. The technician should use a packet tracer to see if the traffic is getting out of the network
D. The technician should run ping tests on the Internet line to monitor for packet loss and latency

A

D. The technician should run ping tests on the Internet line to monitor for packet loss and latency

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4
Q

A network technician needs to configure a device with an embedded OS so it can be connected to a wireless handheld scanner. Which of the following technologies should be configured on the OS to create the wireless connection?

A. Partial mesh
B. Ad hoc
C. Ring
D. Bus

A

B. Ad hoc

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5
Q

An NGFW alerts that a web server in the DMZ is sending suspicious traffic. A network administrator finds that port 25 is open, and the traffic is originating from this port. The only purpose of this server is to deliver website traffic. Which of the following should the network administrator recommend to the systems administrator?

A. Disable Telnet service on the server.
B. Disable DHCP service on the server.
C. Disable the SMTP service on the server
D. Disable FTP service on the server.

A

C. Disable the SMTP service on the server

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6
Q

Joe, a network technician, wants to locally back up several router and switch configurations. He wants to store them on a server that can be accessed easily for recovery without authentication. Which of the following servers should Joe use?

A. Telnet
B. LDAP
C. TFTP
D. Samba

A

C. TFTP

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7
Q

According to the troubleshooting methodology, which of the following steps will help a technician gather information about a network problem? (Select TWO).

A. Test solutions.
B. Duplicate the problem
C. Establish a theory of probable cause
D. Question users
E. Implement preventive measures.
F. Document findings
A

B. Duplicate the problem

D. Question users

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8
Q

A user reports network resources can no longer be accessed. The PC reports a link but will only accept static IP addresses. The technician pings other devices on the subnet, but the PC displays the message Destination unreachable. Which of the following are MOST likley the causes of this issue? (Select TWO).

A. Damaged cables
B. Crosstalk
C. Bent pins
D. TX/RX reverse
E. VLAN mismatch
F. Duplex mismatch
A

C. Bent pins

E. VLAN mismatch

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9
Q

While testing an ACL on the default gateway router to allow only web browsing, ports TCP 80 and TCP 443 were the only ports open. When tested, no websites were accessible via their URLs inside the network. Which of the following configurations should be added to the ACL?

A. permit tcp any any eq 20
B. permit udp any any eq 25
C. permit udp any any eq 53
D. permit udp any any eq 68
E. permit tcp any any eq 110
F. permit tcp any any eq 8080
A

C. permit udp any any eq 53

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10
Q

Users have been experiencing connection timeout issues when using a web-based program. The network technician determines the problem happened due to a TTL setting that was set too low on the firewall. Which of the following BEST enabled the network technician to reach this conclusion?

A. Reviewing application logs
B. Reviewing a baseline report
C. Reviewing a vulnerability scan
D. Reviewing SLA requirements

A

A. Reviewing application logs

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11
Q

A network technician is installing a new wireless network for a client. The client has experienced issues with other building tenants connecting to the wireless network and utilizing the bandwidth. The client wants to prevent this from happening by using certificate-based authentication. Which of the following technologies should the network administrator implement?

A. WPA-PSK
B. EAP-TLS
C. AES-CCMP
D. WEP-TKIP

A

B. EAP-TLS

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12
Q

A network administrator is installing a campus network of two routers, 24 switches, 76 APs, and 492 VoIP phone sets. Which of the following additional devices should the administrator install to help manage this network?

A. VoIP PBX
B. Content filter
C. RADIUS server
D. Wireless controller

A

D. Wireless controller

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13
Q

A technician arrives at a new building to find cabling has been run and terminated, but only the wall ports have been labeled. Which of the following tools should be utilized to BEST facilitate labeling the patch panel?

A. Tone generator
B. Cable tester
C. Multimeter
D. Loopback adapter

A

B. Cable tester

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14
Q

Which of the following policies prohibits a network administrator from using spare servers in the datacenter to mine bitcoins?

A. NDA
B. BYOD
C. AUP
D. MOU

A

C. AUP

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15
Q

Which of the following technologies is used when multiple Ethernet adapters work to increase speed and fault tolerance?

A. Clustering
B. Load balancing
C. Redundant circuits
D. NIC teaming

A

D. NIC teaming

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16
Q

A network technician has finished configuring a new DHCP for a network. To ensure proper functionality, which of the following ports should be allowed on the servers local firewall?
(Select TWO).

A. 20
B. 21
C. 53
D. 67
E. 68
F. 389
A

D. 67

E. 68

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17
Q

A network technician is reviewing switch ACLs to determine if they are causing communication issues with one PC. The PCs IP address is 192.168.12.66. Which of the following is the network range found in the ACL that could have affected this PC?

A. 192.168.12.97 255.255.255.192
B. 192.168.12.97 255.255.255.224
C. 192.168.12.97 255.255.255.240
D. 192.168.12.97 255.255.255.248

A

A. 192.168.12.97 255.255.255.192

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18
Q

A new technician is connecting an access switch to a distribution switch uplink in a datacenter using fiber cables. Which of the following are transceivers the technician should use to perform this job? (Select TWO).

A. RJ45
B. DB-9
C. LC
D. SFTP
E. GBIC
F. SC
A

C. LC

F. SC

19
Q

Which of the following physical security devices is used to prevent unauthorized access into a datacenter?

A. Motion detector
B. Video camera
C. Asset tracking
D. Smart card reader

A

D. Smart card reader

20
Q

A technician is installing two new servers that collect logs. After installing the servers, the technician reviews the logical output from various commands. Which of the following should be included in a logical network diagram?

A. Rack location
B. Room number
C. Media type
D. Hostname

A

D. Hostname

21
Q

A few weeks after starting a new position, Joe, a junior network administrator, receives a call from an internal number asking for his username and password to update some records.
Joe realizes this may be a type of attack on the network, since he has full access to network resources. Which of the following attacks is described?

A. Logic bomb
B. Social engineering
C. Trojan horse
D. Insider threat

A

B. Social engineering

22
Q

A technician is sent to troubleshoot a faulty network connection. The technician tests the cable, and data passes through successfully. No changes were made in the environment, however, when a network device is connected to the switch using the cable, the switchport will not light up. Which of the following should the technician attempt NEXT?

A. Modify the speed and duplex
B. Plug in to another port
C. Replace the NIC
D. Change the switch

A

B. Plug in to another port

23
Q

A technician has been assigned to capture packets on a specific switchport. Which of the following switch feature MUST be used to accomplish this?

A. Spanning tree
B. Trunking
C. Port aggregation
D. Port mirroring

A

D. Port mirroring

24
Q

Which of the following operate only within the UDP protocol?

A. Frames
B. Datagrams
C. Segments
D. Packets

A

B. Datagrams

25
Q

An employee reports an error when visiting a website using SSL, and a message is displayed warning of an invalid certificate. Which of the following could be occurring?

A. Phishing
B. DDoS
C. Evil twin
D. MITM
E. OCSP stapling
A

C. Evil twin

26
Q

A network technician is troubleshooting a connectivity issue and determines the cause is related to the VLAN assignment on one of the access switches in the network. After resolving the issue, the network technician decides to update the documentation to refer to the correct VLAN. Which of the following should the technician update?

A. Physical diagram
B. Logical diagram
C. IDF documentation
D. Change management documentation
E. Incident rponse plan
A

B. Logical diagram

27
Q

A university has a lecture hall containing 100 students. Currently, the lecture hall has two 802.11ac wireless access points, which can accommodate up to 50 devices each. Several students report they are unable to connect devices to the wireless network. Which of the following is MOST likely the issue?

A. One of the wireless access points is on the wrong frequency
B. The students are attempting to connect 802.11g devices
C. The students are using more than one wireless device port seat.
D. Distance limitations are preventing the students from connecting.

A

D. Distance limitations are preventing the students from connecting.

28
Q

A WAP has been dropping off the network sporadically and reconnecting shortly thereafter. The Cat5 wire connecting the access point is a long run of 265ft (81m) and goes through the business area and the mechanical room. Which of the following should the technician do to fix the AP connectivity issue?

A. Install a repeater to boost the signal to its destination
B. Replace the UTP cable with plenum cable.
C. Upgrade the cable from Cat 5 to Cat 5e.
D. Set the AP to half duplex to compensate for signal loss.

A

C. Upgrade the cable from Cat 5 to Cat 5e.

29
Q

A technician wants to configure a SOHO network to use a specific public DNS server. Which of the following network components should the technician configure to point all clients on a network to a new DNS server?

A. Router
B. Switch
C. Load balancer
D. Proxy server

A

A. Router

30
Q

A company wishes to allow employees with company-owned mobile devices to connect automatically to the corporate wireless network upon entering the facility. Which of the following would BEST accomplish this objective?

A. Open wireless
B. Geofencing
C. Pre-shared key
D. MAC filtering

A

C. Pre-shared key

31
Q

A network engineer for a manufacturing company is implementing a wireless network that provides reliable coverage throughout the facility. There are several large, electric, motorized machines installed on the shop floor for automating the manufacturing process. These machines are known to be significant sources of RF interference. Which of the following frequencies should the wireless network use to MINIMIZE this interference?

A. 2.4 GHz
B. 56MHz
C. 5GHz
D. 900MHz

A

C. 5GHz

32
Q

A company has procured a new office building and started the process of assigning employees to work at that location. The company has also purchased equipment for the new location. There are 5033 laptops, 6000 monitors, and 857 printers. Which of the following steps is the technician most likely to complete FIRST?

A. Create a rack diagram
B. Create a network baseline
C. Create an inventory database
D. Create a port location diagram

A

C. Create an inventory database

33
Q

Which of the following is created on a 48-port switch with five active VLANs?

A. 48 networks, five segments
B. 48 collision domains, five broadcast domains
C. 240 private networks
D. 240 usable IP addresses

A

B. 48 collision domains, five broadcast domains

34
Q

A corporate manager says wireless phones do not work properly inside the main building. After a troubleshooting process, the network administrator detects that the voice packets are arriving on the wireless phones with different delay times. Which of the following performance issues is the company facing?

A. Jitter
B. Latency
C. Attenuation
D. Frequency mismatch

A

A. Jitter

35
Q

Which of the following technologies is used to attach multiple guest operating systems to a single physical network port?

A. Virtual switch
B. FCoE
C. VPC
D. vSAN
E. Fibre Channel
A

A. Virtual switch

36
Q

When speaking with a client, an employee realizes a proposed solution may contain a specific cryptographic technology that is prohibited for non-domestic use. Which of the following documents or regulations should be consulted for confirmation?

A. Incident response policy
B. International export controls
C. Data loss prevention
D. Remote access policies
E. Licensing restrictions
A

B. International export controls

37
Q

A network technician is installing a new network switch in the MDF. The technician is using fiber to connect the switch back to the core. Which of the following transceiver types should the technician use?

A. MT-RJ
B. BNC
C. GBIC
D. F-type

A

C. GBIC

38
Q

A network technician notices a router that repeatedly reboots. When contacting technical support, the technician discovers this is a known problem in which an attacker can craft packets and send them to the router through an obsolete protocol port, causing the router to reboot. Which of the following did the network technician fail to do? (Select TWO).

A. Generate new crypto keys.
B. Keep patches updated.
C. Disable unnecessary services.
D. Shut down unused interfaces.
E. Avoid using common passwords.
F. Implement file hashing.
A

B. Keep patches updated.

C. Disable unnecessary services.

39
Q

A technician has replaced a customers desktop with a known-good model from storage. However, the replacement desktop will not connect to network resources. The technician suspects the desktop has not been kept up to date with security patches. Which of the following is MOST likely in place?

A. ACL
B. NAC
C. Traffic shaping
D. SDN
E. NTP
A

B. NAC

40
Q

A network technician wants to gain a better understanding of network trends to determine if they are over capacity. Which of the following processes should the technician use?

A. Log review
B. Port scanning
C. Vulnerability scanning
D. Traffic analysis

A

D. Traffic analysis

41
Q

A network technician is configuring network addresses and port numbers for a router ACL to block a peer-to-peer application. Which of the following is the HIGHEST layer of the OSI model at which this router ACL operates?

A. Transport
B. Network
C. Session
D. Application

A

A. Transport

42
Q

An attacker has flooded the hardware tables of a switch to forward traffic to the attackers IP address rather than the default router. The traffic received is copied in real time, and then forwarded to the default router transparently from the end-user perspective. Which of the following attacks are occurring in this scenario? (Select TWO).

A. DNS poisoning
B. ARP poisoning
C. Man-in-the-middle
D. Ransomware
E. Evil twin
F. Reflective
A

B. ARP poisoning

C. Man-in-the-middle

43
Q

A remote user is required to upload weekly reports to a server at the main office. Both the remote user and the server are using a Windows-based OS. Which of the following represents the BEST method for the remote user to connect to the server?

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

A

A. RDP

44
Q

At which of the following layers of the OSI model would TCP/UDP operate?

A. Layer 3
B. Layer 4
C. Layer 5
D. Layer 6

A

B. Layer 4

CompTIA Network + ET (7 decks)

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