CompTIA Network+ Practice Test for Subdomain 1.7 #01

Question 1

A systems administrator at a mid-sized manufacturing company is assigning IP addresses to devices on the production floor. The company uses the 172.16.0.0/12 address range internally, and the administrator needs to verify that a newly requested address falls within the private range defined by RFC 1918. Which of the following IP addresses is a valid private address within the 172.16.0.0/12 range?

A. 172.32.5.10 B. 172.31.254.1 C. 172.15.0.1 D. 172.33.0.1

Question 2

A help desk analyst receives a call from a remote employee who reports that their workstation has an IP address of 169.254.47.12 and cannot reach any network resources. The employee confirms that the Ethernet cable is connected and the link light is active on the network adapter. What does this IP address indicate about the workstation's network configuration?

A. The workstation has been assigned a Class B private address by the DHCP server B. The workstation is using an Automatic Private IP Addressing (APIPA) address because it failed to obtain a DHCP lease C. The workstation is configured with a valid loopback address for local diagnostic testing D. The workstation has received a public IP address directly from the Internet service provider

Question 3

A network technician at a regional healthcare clinic is tasked with subnetting the 192.168.10.0/24 network into smaller subnets to isolate departments for security compliance. The technician needs at least six subnets, each supporting a minimum of 25 hosts. Which subnet mask meets these requirements while wasting the fewest addresses?

A. /26 (255.255.255.192) B. /27 (255.255.255.224) C. /28 (255.255.255.240) D. /29 (255.255.255.248)

Question 4

The IT director at a growing logistics company asks a junior network engineer to explain why certain address ranges are reserved and cannot be used for devices that need to communicate across the public Internet. The engineer must identify which RFC 1918 private address range corresponds to Class A addressing. Which of the following represents the Class A private address range defined by RFC 1918?

A. 192.168.0.0 through 192.168.255.255 B. 10.0.0.0 through 10.255.255.255 C. 172.16.0.0 through 172.31.255.255 D. 169.254.0.0 through 169.254.255.255

Question 5

A network architect at a university is designing an IP addressing plan that allows different-sized subnets across campus departments. The computer science lab needs 50 host addresses, the administrative office needs 120 host addresses, and the library needs 10 host addresses, all from a single allocated address block. Which subnetting technique allows the architect to create subnets of varying sizes from a single network to minimize address waste?

A. Classful subnetting with a fixed subnet mask B. Variable Length Subnet Mask (VLSM) C. Automatic Private IP Addressing (APIPA) D. Classless Inter-domain Routing (CIDR) supernetting

Question 6

A technician at a small accounting firm is verifying connectivity on a newly configured workstation. The technician types ping 127.0.0.1 in the command prompt and receives successful replies. The technician then attempts to ping the default gateway but receives no response. What does the successful ping to 127.0.0.1 confirm about the workstation?

A. The workstation can successfully communicate with the default gateway B. The TCP/IP protocol stack on the workstation is functioning correctly at the local level C. The workstation has been assigned a valid IP address by the DHCP server D. The network cable connecting the workstation to the switch is operational

Question 7

A network team at a government agency is reviewing IP addressing documentation and notices that several servers are assigned addresses in the 224.x.x.x range. A junior team member asks which IPv4 address class this range belongs to and what its intended purpose is. Which class does the 224.0.0.0 through 239.255.255.255 range belong to, and what is it reserved for?

A. Class D, reserved for multicast traffic B. Class E, reserved for experimental and research use C. Class C, reserved for small networks with up to 254 hosts D. Class B, reserved for medium-sized organizations

Question 8

A consulting engineer is helping a startup company select an internal IP addressing scheme. The company currently has 40 employees but plans to expand to no more than 200 devices total, including printers and wireless access points. The engineer wants to use the smallest RFC 1918 private address block that still provides enough address space with room for reasonable growth. Which private address range is the most appropriate choice for this scenario?

A. 10.0.0.0/8 B. 192.168.1.0/24 C. 172.16.0.0/12 D. 169.254.0.0/16

Question 9

A network administrator at a retail chain is configuring inter-site routing and receives a summary route of 10.48.0.0/13 from the corporate office. The administrator needs to determine how many individual /24 networks are summarized within this CIDR block to plan IP allocation for branch stores. How many /24 networks does a /13 CIDR block contain?

A. 256 B. 512 C. 1,024 D. 2,048

Question 10

A field technician is dispatched to a satellite office where users report intermittent connectivity. Upon inspection, the technician discovers that a workstation is configured with an IP address of 192.168.1.50, a subnet mask of 255.255.255.0, and a default gateway of 192.168.2.1. The technician suspects this misconfiguration is preventing the workstation from reaching resources outside the local subnet. Why is the workstation unable to communicate with devices on other subnets?

A. The IP address 192.168.1.50 is a public address and cannot be used on an internal network B. The subnet mask is too restrictive and does not allow any host addresses on the network C. The default gateway address is on a different subnet than the workstation, so the workstation cannot forward traffic to the router D. The IP address 192.168.1.50 conflicts with the loopback address range and is reserved for diagnostic purposes

CompTIA Network+ Practice Test for Subdomain 1.7 #01

ByThe Test Master

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