- (Topic 3)
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?
Correct Answer:
C
Assigning a new IP address range to the local company is the best option to quickly connect the two companies without causing any IP address conflicts or overlaps. This option requires reconfiguring the local company’s network devices and updating the routing tables on both sides, but it avoids the need for any NAT or static routing solutions that may introduce additional complexity, cost, or performance issues12 References1: Connecting Networks with Overlapping IP Ranges 2: What Is Network Address Translation (NAT)?
- (Topic 3)
A technician is trying to determine whether an LACP bundle is fully operational. Which of the following commands will the technician MOST likely use?
Correct Answer:
A
https://www.cisco.com/c/en/us/td/docs/optical/cpt/r9_3/command/reference/cpt93_cr/cpt93
_cr_chapter_01000.html
- (Topic 3)
An IT administrator received an assignment with the following objectives
• Conduct a total scan within the company's network tor all connected hosts
• Detect all the types of operating systems running on all devices
• Discover all services offered by hosts on the network
• Find open ports and detect security risks.
Which of the following command-line tools can be used to achieve these objectives?
Correct Answer:
A
Nmap (Network Mapper) is a free and open source command line tool that can be used to scan a network for all connected hosts, detect the types of operating systems running on all devices, discover all services offered by hosts on the network, find open ports, and detect security risks. Nmap is commonly used by system administrators and security professionals to audit a network’s security and identify possible vulnerabilities. Nmap can be used to discover active hosts, scan ports, fingerprint operating systems, detect running services, and more. Reference: CompTIA Network+ Study Manual, 8th Edition, page 592.
- (Topic 3)
A network administrator needs to set up a file server to allow user access. The organization uses DHCP to assign IP addresses. Which of the following is the best solution for the administrator to set up?
Correct Answer:
B
A reservation for the server based on the MAC address means that the DHCP server will assign a specific IP address to the file server every time it requests one, based on its MAC address. This way, the file server will have a consistent IP address that users can access, without the need to manually configure it or use a separate scope. A reservation also ensures that the IP address of the file server will not be given to any other device by the DHCP server
- (Topic 1)
Which of the following is the LARGEST MTU for a standard Ethernet frame?
Correct Answer:
C
The maximum transmission unit (MTU) is the largest size of a data packet that can be transmitted over a network. A standard Ethernet frame supports an MTU of 1500 bytes, which is the default value for most Ethernet networks. Larger MTUs are possible with jumbo frames, but they are not widely supported and may cause fragmentation or compatibility issues. References: https://partners.comptia.org/docs/default-source/resources/comptia-network-n10-008- exam-objectives-(2-0), https://en.wikipedia.org/wiki/Maximum_transmission_unit