NT-FG CLASSES

Which value, that is contained in an IPv4 header field, is decremented by each router that receives a packet?

• Source IP Address
• Header Checksum
• Time to Live (TTL)
• Destination IP Address

A user is executing a tracert to a remote device. At what point would a router, which is in the path to the destination device, stop forwarding the packet?

• When it encounters a DNS server in the network
• When it reaches the halfway point in the network
• When it reaches the final destination device or encounters a firewall that blocks the packet.
• When it encounters a switch in the network

A user is complaining that an external web page is taking longer than normal to load.The web page does eventually load on the user machine. Which tool should the technician use with administrator privileges in order to locate where the issue is in the network?

• ping
• ipconfig
• traceroute
• netstat

What is an advantage to using a protocol that is defined by an open standard?

• Higher cost of implementation
• Limited compatibility with other systems
• • It encourages competition and promotes choices.

• Increased security measures

A user sends an HTTP request to a web server on a remote network. During encapsulation for this request, what information is added to the address field of a frame to indicate the destination?

• IP address
• Port number
• MAC address
• Subnet mask

Why would a Layer 2 switch need an IP address?

• For management purposes
• To provide routing functionality
• To enhance security measures
• To increase network speed

What characteristic describes a VPN?

• Unsecured and unencrypted connection over a private network
• Slow and unreliable connection over a public network
• Secure and encrypted connection over a public network
• Limited access to online content

What is a function that are provided by the network layer?

• Transmitting data between devices
• Ensuring error-free data transmission
• Establishing physical connections between devices
• Routing packets based on logical addresses

Which information does the show startup-config command display?

• Configuration saved in Flash memory
• Configuration saved in ROM
• Configuration saved in RAM
• Configuration saved in NVRAM

What is one main characteristic of the data link layer?

• Operates at the physical layer of the OSI model
• Responsible for end-to-end delivery of data packets
• Primarily concerned with routing data across networks
• Responsible for node-to-node delivery of data frames