N10-007: CompTIA Network+ 2018

QUESTION NO: 51
Client PCs are unable to receive addressing information from a newly configured interface on a router. Which of the following should be added to allow the clients to connect?

A. DHCP lease time
B. IP helper
C. TTL
D. DNS record type

Answer: B
Explanation:

QUESTION NO: 52
When enabling jumbo frames on a network device, which of the following parameters is being adjusted?

A. Speed
B. Duplex
C. MTU
D. TTL

Answer: C
Explanation:

QUESTION NO: 53
A technician logs onto a system using Telnet because SSH is unavailable. SSH is enabled on the target device, and access is allowed from all subnets. The technician discovers a critical step was missed. Which of the following would allow SSH to function properly?

A. Perform file hashing
B. Generate new keys
C. Update firmware
D. Change default credentials

Answer: B
Explanation:

QUESTION NO: 54
A network administrator wants to ensure sensitive data is not exfiltrated from the system electronically. Which of the following should be implemented?

A. DLP
B. AUP
C. NDA
D. SLA

Answer: A
Explanation:

QUESTION NO: 55
An office network consists of one two-port router connected to a 12-port switch. A four-port hub is also connected to the switch. On this particular network, which of the following is the number of collision domains that exist?

A. 3
B. 12
C. 13
D. 14
E. 15

Answer: D
Explanation:

QUESTION NO: 56
A network technician wants to remotely and securely access the desktop of a Linux workstation.
The desktop is running remote control software without encryption. Which of the following should the technician use to secure the connection?

A. SSH in tunnel mode
B. RDP set to console connection
C. EAP-PEAP
D. SFTP

Answer: A
Explanation:

QUESTION NO: 57
Which of the following should current network performance be compared against to determine network anomalies?

A. Baseline
B. Traffic analysis
C. Packet capture
D. Logs

Answer: A
Explanation:

QUESTION NO: 58
A network administrator configures an email server to use secure protocols. When the upgrade is completed, which of the following ports on the firewall should be configured to allow for connectivity? (Choose three.)

A. TCP 25
B. TCP 110
C. TCP 143
D. TCP 389
E. TCP 587
F. TCP 993
G. TCP 995

Answer: E,F,G
Explanation:

QUESTION NO: 59
After a server outage, a technician discovers that a physically damaged fiber cable appears to be the problem. After replacing the cable, the server will still not connect to the network. Upon inspecting the cable at the server end, the technician discovers light can be seen through one of the two fiber strands. Which of the following should the technician do FIRST to reconnect the server to the network?

A. Reverse the fiber strands of the cable and reconnect them to the server
B. Use a TDR to test both strands of a new replacement cable prior to connecting it to the server
C. Replace the server’s single-mode fiber cable with multimode fiber
D. Move the fiber cable to different port on the switch where both strands function

Answer: A
Explanation:

QUESTION NO: 60
The backup server connects to a NAS device using block-level storage over Ethernet. The performance is very slow, however, and the network technician suspects the performance issues are network related. Which of the following should the technician do to improve performance?

A. Utilize UDP to eliminate packet overhead
B. Turn off MDIX settings on the NAS and server switch ports
C. Enable jumbo frames on the NAS and server
D. Encapsulate the storage traffic in a GRE tunnel

Answer: C
Explanation:

QUESTION NO: 61
A technician is trying to determine the IP address of a customer’s router. The customer has an IP address of 192.168.1.55/24. Which of the following is the address of the customer’s router?

A. 192.168.0.55
B. 192.168.1.0
C. 192.168.1.1
D. 192.168.5.5
E. 255.255.255.0

Answer: C
Explanation:

QUESTION NO: 62
A network technician is able to connect the switches between two offices, but the offices cannot communicate with each other, as each office uses a different IP addressing scheme. Which of the following devices needs to be installed between the switches to allow communication?

A. Bridge
B. Access point
C. Router
D. Range extender

Answer: C
Explanation:

QUESTION NO: 63
A network technician is working on a proposal for email migration from an on-premises email system to a vendor-hosted email in the cloud. The technician needs to explain to management what type of cloud model will be utilized with the cloud-hosted email. Which of the following cloud models should the technician identify in the proposal?

A. IaaS
B. PaaS
C. SaaS
D. MaaS

Answer: C
Explanation:

QUESTION NO: 64
Which of the following is the correct port number for NTP?

A. 25
B. 69
C. 123
D. 161

Answer: C
Explanation:

QUESTION NO: 65
A network technician is connecting two switches together. Which of the following protocols should the technician use to increase speed and fault tolerance?

A. SIP
B. BGP
C. LACP
D. LLDP

Answer: C
Explanation:

QUESTION NO: 66
A company has a web-based application that is used by many different departments. The company has experienced some overload of resources on the database server. The network administrator implements a network device in between the servers and the database. Which of the following BEST describes the purpose of this device?

A. Content filtering and network analysis
B. Load balancing and providing high availability
C. Port sniffing and protocol analysis
D. Clustering and NIC teaming

Answer: B
Explanation:

QUESTION NO: 67
A technician is replacing a switch at a branch office and discovers the existing backbone cable does not fit in the new switch. The fiber patch panel has circular connections. The new switch has a transceiver that accepts a smaller square adapter of two strands. Which of the following patch cables would the technician need to complete the installation?

A. LC to SC
B. SC to ST
C. LC to ST
D. ST to ST
E. SC to SC

Answer: C
Explanation:

QUESTION NO: 68
A computer lab on a campus network was recently reconfigured using recycled network cables. One of the 24 computers in the lab is unable to connect to the network after the upgrade. A network technician successfully uses the cable in question to connect directly to another computer. Which of the following is MOST likely the issue with the cable?

A. The cable is a crossover cable
B. The cable is a rollover cable
C. The cable has bent pins
D. The cable is a Cat 5 cable

Answer: A
Explanation:

QUESTION NO: 69
Which of the following is a reason why a business may be hesitant to move sensitive data to a
SaaS cloud service?

A. Decreased performance of internal network
B. Loss of full control over data resources
C. Increased malware exposure
D. Incompatibility with the current network

Answer: B
Explanation:

QUESTION NO: 70
Users have been experiencing slow network response times, and management has asked the network technician to provide evidence of network improvement. After optimizing the network, which of the following would be required?

A. IDF/MDF documentation
B. Change management
C. Performance baseline
D. Physical diagram

Answer: C
Explanation:

QUESTION NO: 71
A network technician has created a network that consists of a router, a firewall, a switch, and several PCs. Which of the following physical network topologies was created?

A. Star
B. Mesh
C. Ring
D. Bus

Answer: D
Explanation:

QUESTION NO: 72
A technician is setting up a branch office on a point-to-point connection. Which of the following IP network blocks is the MOST efficient use of IP address space for the router connections between the two sites?

A. /24
B. /25
C. /30
D. /32

Answer: C
Explanation:

QUESTION NO: 73
A technician is upgrading the firmware on an older KVM switch. The specifications call for a serial port to connect to the computer on one side, and an Ethernet jack to connect to the switch on the other side. Which of the following connectors does the technician need for this cable? (Choose two.)

A. RG-9
B. DB-9
C. RJ-11
D. DB-25
E. RJ-45
F. BNC

Answer: B,E
Explanation:

QUESTION NO: 74
An end-user device requires a specific IP address every time it connects to the corporate network; however, corporate policy does not allow the use of static IP addresses. Which of the following will allow the request to be fulfilled without breaking the corporate policy?

A. DHCP relay
B. DHCP exclusion
C. DHCP option
D. DHCP reservation

Answer: D
Explanation:

QUESTION NO: 75
A technician is planning a remote-access strategy to manage routers and switches on a dedicated management network. The management network is segregated from the production network and uses site-to-site VPN connections. Some of the equipment does not support encryption. Which of the following should the technician choose that all the equipment would support?

A. Telnet
B. SSL
C. SSH
D. IPSec

Answer: A
Explanation:

QUESTION NO: 76
Which of the following protocols do MOST MITM attacks utilize?

A. ARP
B. SIP
C. FTP
D. SCP

Answer: A
Explanation:

QUESTION NO: 77
An ISP technician gets a call from a business that just changed equipment but can no longer connect to the Internet. The technician checks the ARP table on the ISP switch, and there is no corresponding MAC address present. Instead, the entry is “Incomplete”. Which of the following could cause this condition?

A. VLAN mismatch
B. Duplex/Speed mismatch
C. Duplicate IP address
D. TX/RX reverse

Answer: B
Explanation:

QUESTION NO: 78
A systems administrator has recently purchased and installed a large electronic signage screen for the company’s parking garage. The screen’s management software was installed on a server with a public IP address to allow remote management. The systems administrator is now troubleshooting an issue with the screen displaying unknown, random, and inappropriate messages. Which of the following is MOST effective in resolving this issue?

A. Changing the management software’s default credentials
B. Disabling unnecessary services from the server and management software
C. Changing the management software’s default port
D. Replacing the management software’s self-signed certificate with a valid certificate

Answer: A
Explanation:

QUESTION NO: 79
A technician is investigating a server performance issue. The technician has gathered the server utilization statistics. Which of the following should the technician use to determine which statistics are not in the normal range?

A. Baseline review
B. Vulnerability scan
C. System life-cycle report
D. Archiving logs

Answer: A
Explanation:

QUESTION NO: 80
Which of the following devices, if implemented, would result in decreased administration time of an 802.11 network running centralized authentication services? (Choose two.)

A. VPN concentrator
B. Proxy server
C. Wireless controller
D. RADIUS server
E. Multilayer switch

Answer: C,D
Explanation:

QUESTION NO: 81
A technician must determine if a web page user’s visits are connecting to a suspicious website’s IP address in the background. Which of the following tools would provide the information on TCP connections?

A. netstat
B. tracert
C. arp
D. ipconfig
E. route

Answer: A
Explanation:

QUESTION NO: 82
An administrator is moving to a new office. There will be several network runs through the ceiling area of the office. Which of the following is the BEST to utilize in these areas?

A. Single-mode fiber-optic cabling
B. Cat 5e-rated cabling
C. Cat 6-rated cabling
D. Plenum-rated cabling

Answer: D
Explanation:

QUESTION NO: 83
A network technician receives a spool of Cat 6a cable and is asked to build several cables for a new set of Ethernet runs between devices. Which of the following tools are MOST likely needed to complete the task? (Choose three.)

A. Wire stripper
B. Cable crimper
C. RJ-11 connectors
D. RJ-45 connectors
E. Multimeter
F. Punchdown tool
G. Tone generator

Answer: A,B,D
Explanation:

QUESTION NO: 84
As part of a transition from a static to a dynamic routing protocol on an organization’s internal network, the routing protocol must support IPv4 and VLSM. Based on those requirements, which of the following should the network administrator use? (Choose two.)

A. OSPF
B. IS-IS
C. RIPv1
D. BGP
E. VRRP

Answer: A,B
Explanation:

QUESTION NO: 85
A telecommunications provider has just deployed a new OC-12 circuit at a customer site. While the circuit showed no errors from the provider end to the customer’s demarcation point, a network administrator is trying to determine the cause of dropped packets and errors on the circuit. Which of the following should the network administrator do to rule out any problems at Layer 1? (Choose two.)

A. Use a loopback at the demark and router, and check for a link light
B. Use an OTDR to validate the cable integrity
C. Use a pinout tester to validate the cable integrity
D. Use a multimeter to validate the cable integrity
E. Check for any devices that may be causing EMI on the cable
F. Clean the cables to be sure they are free of dust and debris

Answer: A,B
Explanation:

QUESTION NO: 86
A single PRI can deliver multiple voice calls simultaneously using which of the following Layer 1 technologies?

A. Time division multiplexing
B. Analog circuit switching
C. CSMA/CD
D. Time division spread spectrum

Answer: A
Explanation:

QUESTION NO: 87
A network technician is diagnosing a time-out issue generated from an end user’s web browser.
The web browser issues standard HTTP get and post commands to interact with the website.
Given this information, the technician would like to analyze the entire TCP handshake of the HTTP requests offline. Which of the following tools would allow the technician to view the handshake?

A. Packet analyzer
B. Port analyzer
C. SNMP traps
D. Spectrum analyzer

Answer: A
Explanation:

QUESTION NO: 88
A customer cannot access a company’s secure website. The company’s network security is reviewing the firewall for the server and finds the following output:

Which of the following changes should be made to allow all customers to access the company’s secure website?

A. Allow any any 10.5.0.10 443
B. Allow any any 12.73.15.5 443
C. Allow 10.5.0.10 443 any any
D. Allow 10.5.0.10 any 10.5.0.10 80

Answer: C
Explanation:

QUESTION NO: 89
Which of the following MUST be implemented to share metrics between routing protocols within the same router?

A. Routing loop
B. Routing table
C. Route redistribution
D. Dynamic routes

Answer: B
Explanation:

QUESTION NO: 90
An engineer is reviewing the implementation requirements for an upcoming project. The basic requirements identified by the customer include the following:

WLAN architecture supporting speeds in excess of 150 Mbps
Clientless remote network access
Port-based network access control

Which of the following solution sets properly addresses all of the identified requirements?

A. 802.11a, IPSec VPN, 802.1x
B. 802.11ac, MPLS, 802.3
C. 802.11b, PPTP, 802.1x
D. 802.11g, MS-CHAP, 802.16
E. 802.11n, SSL-VPN, 802.1x

Answer: E
Explanation:

QUESTION NO: 91
Which of the following is used to classify network data for the purpose of providing QoS?

A. STP
B. VLANs
C. SIP
D. DSCP

Answer: D
Explanation:

QUESTION NO: 92
A network technician needs to separate a web server listening on port 80 from the internal LAN and secure the server from the public Internet. The web server should be accessible to the public Internet over port 80 but not the private LAN. Currently, the network is segmented with a network based firewall using the following IP addressing scheme on each interface:

Which of the following ones should the technician use to place the web server and which of the following firewall rules should the technician configure?

A. Place the web server in the public zone with an inbound rule from eth0 interface to accept traffic over port 80 designated to the web server
B. Place the web server in the DMZ with an inbound rule from eth0 interface to eth1 to accept traffic over port 80 designated to the web server
C. Place the web server in the private zone with an inbound rule from eth2 interface to eth1 to accept traffic over port 80 designated to the web server
D. Place the web server in the DMZ with an inbound rule from eth1 interface to eth0 to accept traffic over port 80 designated to the web server

Answer: B
Explanation:

QUESTION NO: 93
A company recently upgraded all of its printers to networked multifunction devices. Users can print to the new devices, but they would also like the ability to scan and fax files from their computers. Which of the following should the technician update to allow this functionality?

A. Device software
B. Printer drivers
C. Printer firmware
D. NIC drivers

Answer: C
Explanation:

QUESTION NO: 94
A disgruntled employee executes a man-in-the-middle attack on the company network. Layer 2 traffic destined for the gateway is redirected to the employee’s computer. This type of attack is an example of:

A. ARP cache poisoning
B. IP spoofing
C. amplified DNS attack
D. evil twin

Answer: A
Explanation:

QUESTION NO: 95
The process of attempting to exploit a weakness in a network after being given permission by the company is known as:

A. penetration testing
B. vulnerability scanning
C. reconnaissance
D. social engineering

Answer: A
Explanation:

QUESTION NO: 96
A company has contracted with an outside vendor to perform a service that will provide hardware, software, and procedures in case of a catastrophic failure of the primary datacenter. The Chief Information Officer (CIO) is concerned because this contract does not include a long-term strategy for extended outages. Which of the following should the CIO complete?

A. Disaster recovery plan
B. Business continuity plan
C. Service level agreement
D. First responder training

Answer: B
Explanation:

QUESTION NO: 97
A typical cell tower will have microwave and cellular antennas. Which of the following network topologies do these represent? (Choose two.)

A. Point-to-multipoint
B. Bus
C. Point-to-point
D. Mesh
E. Peer-peer
F. Ring

Answer: C,D
Explanation:

QUESTION NO: 98
A network administrator has a monitoring system in place that is currently polling hundreds of network devices at regular intervals. The continuous polling is causing high CPU utilization on the server. Which of the following tasks should the administrator perform to resolve the CPU issue while maintaining full monitoring capabilities?

A. Remove SNMP polling and configure SNMP traps on each network device
B. Remove SNMP polling and implement SNMP walk on each network device
C. Upgrade SNMP to the latest version to mitigate vulnerabilities
D. Modify SNMP polling to poll only during business hours

Answer: A
Explanation:

QUESTION NO: 99
A contractor is setting up and configuring conference rooms for a convention. The contractor sets up each room in the conference center to allow wired Internet access going to individual tables. The contractor measured the distance between the hotel’s patch panel to the jack, and the distance is within Cat 5e specifications. The contractor is concerned that the room will be out of specification if cables are run in each room from the wall jacks. Which of the following actions should the contractor take to ensure the cable runs meet specifications and the network functions properly?

A. Place a switch at the hotel’s patch panel for connecting each room’s cables
B. Place a switch on each table to ensure strong connectivity
C. Place repeaters between the patch panel and the rooms
D. place a switch at the wall jack and run the cables in the room from there

Answer: A
Explanation:

QUESTION NO: 100
Users are reporting their network is extremely slow. The technician discovers pings to external host have excessive response times. However, internal pings to printers and other PCs have acceptable response times. Which of the following steps should the technician take NEXT?

A. Determine if any network equipment was replaced recently
B. Verify malware has not disabled the users’ PC firewalls
C. Replace users’ network cables with known-good network cables
D. Power cycle the web server

Answer: A
Explanation: