Which two traffic types use the Real-Time Transport Protocol (RTP)? (Choose two.)

• video
• web
• file transfer
• voice
• peer to peer

Which wireless technology has low-power and data rate requirements making it popular in home automation applications?

• ZigBee
• LoRaWAN
• 5G
• Wi-Fi

Answer explanation

ZigBee is an IEEE 802.15.4 wireless standard designed for creating personal-area networks. Low energy, power, and data rate requirements make Zigbee a popular protocol for connecting home automation devices.

Which layer of the TCP/IP model provides a route to forward messages through an internetwork?

• application
• network access
• internet
• transport

Answer explanation

The OSI model network layer corresponds directly to the internet layer of the TCP/IP model and is used to describe protocols that address and route messages through an internetwork.

Which type of server relies on record types such as A, NS, AAAA, and MX in order to provide services?

• DNS
• email
• file
• web

Answer explanation

A DNS server stores records that are used to resolve IP addresses to host names. Some DNS record types include A, NS, AAAA, and MX.

What are proprietary protocols?

• protocols developed by private organizations to operate on any vendor hardware
• protocols that can be freely used by any organization or vendor
• protocols developed by organizations who have control over their definition and operation
• a collection of protocols known as the TCP/IP protocol suite

Answer explanation

Proprietary protocols have their definition and operation controlled by one company or vendor.

What service is provided by DNS?

• Resolves domain names, such as cisco.com, into IP addresses.
• A basic set of rules for exchanging text, graphic images, sound, video, and other multimedia files on the web.
• Allows for data transfers between a client and a file server.
• Uses encryption to secure the exchange of text, graphic images, sound, and video on the web.

A client packet is received by a server. The packet has a destination port number of 110. What service is the client requesting?

• DNS
• DHCP
• SMTP
• POP3

What command can be used on a Windows PC to see the IP configuration of that computer?

• show ip interface brief
• ping
• show interfaces
• ipconfig

A wired laser printer is attached to a home computer. That printer has been shared so that other computers on the home network can also use the printer. What networking model is in use?

• client-based
• master-slave
• point-to-point
• peer-to-peer (P2P)

Answer explanation

Peer-to-peer (P2P) networks have two or more network devices that can share resources such as printers or files without having a dedicated server.

What characteristic describes a virus?

• a network device that filters access and traffic coming into a network
• the use of stolen credentials to access private data
• an attack that slows or crashes a device or network service
• malicious software or code running on an end device