Net+ ch. 4-6

The transport layer is responsible for end-to-end communication, error checking, flow control, and data integrity, making it a crucial layer for establishing and managing this type of reliable pathway for data communication.

• Virtual Circuit
• Wireless
• Ethernet
• Remote access

Sabrina, a network system engineer is designing a medium network with the capability to expand in the future. In her network design, Sabrina has included racks, end user devices and dedicated networking devices. What type of networking device would Sabrina include for the purpose of scalable routing within a network and network segmentation? Hint: Works in both the network and data link layer.

• Router
• Switch
• Load Balancer
• L3 Switch

What is the decimal value of the binary number 1010 1101?

• 171
• 172
• 173
• 174

Which of the following ports and protocols would Bert, the system admin set up to centralize log data, simplifying network management, troubleshooting, and security monitoring by consolidating logs from multiple sources into a single location?

• SNMP, Port 162
• Telnet, Port 23
• Syslog, Port 514
• SMTP, Port 25

Which protocol and port are used by the DHCP server to listen for incoming DHCP client messages?

• DNS, Port 53
• DHCP, Port 68
• SNMP, Port 161
• FTP, Port 21

Convert the hexadecimal 0x7F to decimal

• 128
• 127
• 124
• 120

Barney is learning to use the command line on his computer. What will Barney be able to view when he types arp -a into the command prompt?

• Test network latency
• View the IP to MAC address mapping cache
• View open ports on a network
• Identify the protocol in use

Which of the following is the binary conversion of decimal 170?

• 1010 1010
• 1111 0000
• 1111 1111
• 0000 0001

Convert decimal 200 to hexadecimal.

• 0xCA
• 0xD8
• 0xC8
• 0xF1

Jack, the senior network admin is currently on vacation and has received an emergency notification regarding his company's network that requires urgent attention. Jill, the network technician attempted to troubleshoot the issue to no avail. Jill sent the notification, and Jack is now in need of a secure remote connection to identify the issue. Which of the following protocol will enable secure remote connection?

• IPsec
• GRE
• SSL
• SSH