Network Fundamentals

Network administrator only has telnet access to a computer. Which of the following command will identify if the computer uses DHCP?

• tracert

• ping

• dig

• ipconfig

A network administrator has received message from several employee that they cannot reach a particular website. Which of the following commands would provide the best information about the path taken across the network to reach to this website?

• ping

• netstat

• tracert

• telnet

A company would like to verify each individual's identity prior to allowing access to the datacenter. Additionally, the company would like to ensure that users do not tailgate behind other users. Which of the following would BEST meet these goals?

• Implement a biometric reader at the facility entrance and a proximity card at the datacenter entrance

• Implement a security guard at the facility entrance and a keypad on the datacenter entrance

• Implement a CCTV camera and a proximity reader on the datacenter entrance

• Implement a biometric reader at the datacenter entrance and use authentication to access user data

A technician is troubleshooting a wired device on the network. The technician notices that the light on the network card does not blink. After testing the device on a different RJ-45 port, the device connects successfully. Which of the following is causing this issue?

• EMI

• RFI

• Cross-talk

• Bad wiring

A network engineer determines the IP address of a number of system is 169.254.0.0/16 and the system cannot access the Internet. Which of the following should the engineer check to resolve the problem?

• Misconfigured DNS

• Default gateway address

• DHCP server

• NIC failure

What functions do routers perform in a network?

• path selection

• packet switching

• VLAN membership assignment

• Divide collison domains

A network engineer issues the ping 192.168.2.5 command and successfully tests connectivity to a host that has been newly connected to the network. Which protocols were used during the test?

• ICMP

• SMTP

• DHCP

• DNS

What is the main reason to use a private IP address on an internal network?

• Subnet strategy for private companies.

• Manage and scale the growth of the internal network.

• Conserve public IP addresses so that we do not run out of them

• Allow access reserved to the devices.

Where does framing occur within the TCP/IP reference model?

• Application

• Network Access

• Internet

• Transport

An administrator do a traceroute to the website but receives a "destination host unreadable" message. Which protocol is responsible for that message?

• RARP

• RUDP

• ICMP

• SNMP