CompTIA N10-008 CompTIA Network+ Certification Exam Practice Test

Answer : D

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.

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CompTIA Network+ N10-008 Study Guide11

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

Answer : C

ICMP, or Internet Control Message Protocol, is part of the Network layer (Layer 3) in the OSI model. It operates at a level that handles the communication between different networks.ICMP is used for sending error messages and operational information indicating the status of the network

Answer : D

The correct port available for connecting to a SQL database via command-line interface isD. 1521. Port 1521 is the default port for Oracle Database connections using the Oracle Net Services (SQL*Net) protocol.

Port 143: This is used for IMAP (Internet Message Access Protocol) communication.

Port 445: This is used for Microsoft's SMB (Server Message Block) protocol (file and printer sharing).

Port 993: This is used for secure IMAP (IMAPS) communication.

Port 1521: This is the default port for Oracle Database connections using the Oracle Net Services (SQL*Net) protocol.

Answer : C

The correct tool for verifying existing network connections on a server isC. Netstat. Netstat (network statistics) displays active network connections, routing tables, interface statistics, masquerade connections, and multicast memberships.

Tracert: Tracert (traceroute) is used to trace the route taken by packets from the source to the destination. It helps identify the path and latency between routers.

Ipconfig: Ipconfig is used to view and manage IP configuration settings on a local machine (such as IP address, subnet mask, default gateway, etc.). It does not provide information about existing connections.

Netstat: Netstat displays active network connections, including listening ports, established connections, and associated processes. It's useful for troubleshooting and monitoring network activity.

Nslookup: Nslookup is used for DNS (Domain Name System) queries to resolve domain names to IP addresses. It does not provide information about existing connections.

CompTIA Network+ Certification Exam Objectives

Answer : A

High availability refers to systems that are durable and likely to operate continuously without failure for a long time.

Using a load balancer to distribute requests between production and cloud environments ensures that if one environment fails, the other can take over, thus providing high availability.

Answer : B

The most accurate NTP (Network Time Protocol) time source that can be accessed across a network connection is theStratum 1 device. Here's why:

Stratum 0 device: These are reference clocks, such as atomic clocks or GPS receivers, which directly measure time. They are not accessible over the network.

Stratum 1 device: These are servers that synchronize their time with Stratum 0 devices. They are highly accurate and can be accessed over the network.

Stratum 7 device: This is not a standard stratum level in NTP. The valid stratum levels are 0 to 16.

Stratum 16 device: This is a reserved value and not used in practice.

Therefore, the correct answer isB. Stratum 1 device1.

Answer : C

A proxy server is the most appropriate device for inspecting all outgoing traffic to the internet5.It acts as an intermediary between users and the internet, allowing the network administrator to inspect and control the content accessed by the users