ITN Final Exam 4 of 5

Which two network addresses can be assigned to the network containing 10 hosts? Your answers should waste the fewest addresses, not reuse addresses that are already assigned, and stay within the 10.18.10.0/24 range of addresses. (Choose two.)

• 10.18.10.200/28

• 10.18.10.208/28

• 10.18.10.224/28

• 10.18.10.240/27

• 10.18.10.200/27

Answer explanation

Addresses 10.18.10.0 through 10.18.10.63 are taken for the leftmost network. Addresses 192 through 199 are used by the center network. Because 4 host bits are needed to accommodate 10 hosts, a /28 mask is needed. 10.18.10.200/28 is not a valid network number. Two subnets that can be used are 10.18.10.208/28 and 10.18.10.224/28.

A client packet is received by a server. The packet has a destination port number of 21. What service is the client requesting?

• FTP

• LDAP

• IMAP

• HTTP

What attribute of a NIC would place it at the data link layer of the OSI model?

• attached Ethernet cable

• IP address

• MAC address

• RJ-45 port

• TCP/IP protocol stack

A network administrator is adding a new LAN to a branch office. The new LAN must support 10 connected devices. What is the smallest network mask that the network administrator can use for the new network?

• 255.255.255.192

• 255.255.255.248

• 255.255.255.224

• 255.255.255.240

A network engineer has been given the network address of 192.168.99.0 and a subnet mask of 255.255.255.192 to subnet across the four networks shown. How many total host addresses are unused across all four subnets?

• 88

• 200

• 72

• 224

• 158

Which connector is used with twisted-pair cabling in an Ethernet LAN?

• 
• 
• 
• 
• 

A client packet is received by a server. The packet has a destination port number of 22. What service is the client requesting?

• SSH

• SMB

• HTTPS

• FTP

What characteristic describes an IPS?

• a tunneling protocol that provides remote users with secure access into the network of an organization

• a network device that filters access and traffic coming into a network

• software that identifies fast-spreading threats

• software on a router that filters traffic based on IP addresses or applications

What service is provided by DHCP?

• An application that allows real-time chatting among remote users.

• Allows remote access to network devices and servers.

• Dynamically assigns IP addresses to end and intermediary devices.

• Uses encryption to provide secure remote access to network devices and servers.

The switches have a default configuration. Host A needs to communicate with host D, but host A does not have the MAC address for the default gateway. Which network devices will receive the ARP request sent by host A?

• only host D

• only hosts A, B, C, and D

• only hosts B and C

• only hosts B, C, and router R1

• only hosts A, B, and C