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A user is unable to perform a reverse DNS lookup of an IP address to a hostname. Which of the following DNS record types is missing?
Staff members notify a network technician that the wireless network is not working as expected and connectivity to wireless devices is intermittent. Some devices connect but then disconnect. The technician reviews the logs on the WAP controller and identifies thousands of connection attempts from unrecognized devices within a short amount of time. Which of the following is the most likely reason for the wireless network connectivity issue?
A firewall administrator observes log entries of traffic being allowed to a web server on port 80 and port 443. The policy for this server is to only allow traffic on port 443. The firewall administrator needs to investigate how this change occurred to prevent a reoccurrence. Which of the following should the firewall administrator do next?
Which of the following BEST describes a network appliance that warns of unapproved devices that are accessing the network?
The cybersecurity department needs to monitor historical IP network traffic on the WAN interface of the outside router without installing network sensors. Which of the following would be best to allow the department to complete this task?
A network is experiencing a number of CRC errors during normal network communication. At which of the following layers of the OSI model will the administrator MOST likely start to troubleshoot?
Which of the following is the most accurate NTP time source that is capable of being accessed across a network connection?
Which of the following records is the main type in a reverse DNS lookup zone?
A global company has acquired a local company. The companies are geographically separate. The IP address ranges for the two companies are as follows: * Global company: 10.0.0.0/16 * Local company: 10.0.0.0/24 Which of the following can the network engineer do to quickly connect the two companies?
A network administrator is designing a new datacenter in a different region that will need to communicate to the old datacenter with a secure connection. Which of the following access methods would provide the BEST security for this new datacenter?

Question 861

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Which of the following devices is found in the middle tier of a three-tier network architecture?

A.
Router
A.
Router
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B.
Multilayer switch
B.
Multilayer switch
Answers
C.
Access switch
C.
Access switch
Answers
D.
Firewall
D.
Firewall
Answers
Suggested answer: B

Explanation:

In a three-tier network architecture, the middle tier is typically where the distribution layer resides, which connects network services to the access layer below and the core layer above.A multilayer switch operates at this level, providing routing, switching, and traffic management between subnets and VLANs.


Question 862

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A user is connecting a smartwatch to a smartphone for internet access. Which of the following network types is the user employing?

A.
MAN
A.
MAN
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B.
PAN
B.
PAN
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C.
LAN
C.
LAN
Answers
D.
WLAN
D.
WLAN
Answers
Suggested answer: B

Question 863

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An older web server on a screened subnet is serving unencrypted web traffic. The server is not capable of serving HTTPS traffic directly but the firewall is capable of doing so. Which of the following should be done to encrypt all traffic coming into the web server from outside the network? (Select two).

A.
A certificate should be installed on the server
A.
A certificate should be installed on the server
Answers
B.
Incoming port 80 traffic at the firewall should Be forwarded to port 443 on the server.
B.
Incoming port 80 traffic at the firewall should Be forwarded to port 443 on the server.
Answers
C.
Incoming port 60 traffic at the firewall should be forwarded to port 80 on the server.
C.
Incoming port 60 traffic at the firewall should be forwarded to port 80 on the server.
Answers
D.
Incoming port 443 traffic at the firewall should be forwarded to port 80 on the server.
D.
Incoming port 443 traffic at the firewall should be forwarded to port 80 on the server.
Answers
E.
A certificate should be installed on the firewall
E.
A certificate should be installed on the firewall
Answers
F.
A proxy server should be Installed on the screened subnet.
F.
A proxy server should be Installed on the screened subnet.
Answers
Suggested answer: D, E

Explanation:

To secure the web traffic coming into an older web server that cannot handle HTTPS traffic, the firewall can be used to terminate the SSL connection. A certificate should be installed on the firewall to handle the encryption of traffic (port 443 is the default port for HTTPS traffic).The firewall can then forward the decrypted traffic to the web server on port 80, which is the default port for HTTP traffic.

Question 864

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A packet has a destination address that is located outside of the local network. Which of the following should be used to route this packet out of the local network?

A.
DNS server
A.
DNS server
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B.
Load balancer
B.
Load balancer
Answers
C.
DHCP server
C.
DHCP server
Answers
D.
Default gateway
D.
Default gateway
Answers
Suggested answer: D

Explanation:

Default Gateway: The default gateway is the IP address of the router that connects the local network to external networks (such as the internet). When a packet's destination address is outside the local network, it is sent to the default gateway for further routing.

Professor Messer - Network+ Certification Course

CompTIA Network+ N10-008 Study Guide11

Studocu - To route a packet outside the local network, a packet must be generated at the network layer

Question 865

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Which of the following synchronizes time on all devices within a network?

A.
DHCP
A.
DHCP
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B.
DNS
B.
DNS
Answers
C.
NTP
C.
NTP
Answers
D.
SNMP
D.
SNMP
Answers
Suggested answer: C

Explanation:

Network Time Protocol (NTP): NTP is a widely adopted protocol for synchronizing clocks across network devices. It ensures that all devices have accurate and consistent time. NTP uses a hierarchical system of time sources to maintain synchronization.

Professor Messer - Network+ Certification Course

CompTIA Network+ N10-008 Study Guide

Auvik - Network Time Synchronization: Why and How It Works

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