CCNA v7.0: Managing Multiple Application Sessions and Packet Flows Quiz and Flashcards

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Questions and Answers

Match the following networking models with their corresponding layers:

TCP/IP model = Transport layer OSI model = Application layer

Match the following DNS record types with their functions:

A = End device IPv4 address NS = Authoritative name server AAAA = End device IPv6 address MX = Mail exchange record

Match the following protocols with their descriptions:

ZigBee = IEEE 802.15.4 wireless standard for personal-area networks DNS = Stores records to resolve IP addresses to host names TCP/IP protocol suite = Collection of protocols Proprietary protocols = Controlled by one company or vendor

Match the following network traffic types with their characteristics:

Video = High bandwidth and real-time transmission Web = HTTP/HTTPS requests and data transfer File transfer = Large data packets and reliable delivery Voice = Low latency and real-time communication Signup and view all the answers

Match the following wireless technologies with their applications:

ZigBee = Home automation and low-power devices LoRaWAN = Long-range IoT applications 5G = High-speed mobile communication WiFi 6 = High-density and high-throughput scenarios Signup and view all the answers

Match the following network security terms with their definitions:

Firewall = Monitors and controls incoming/outgoing network traffic Encryption = Securing data by converting it into a code VPN = Secure private network over a public network like the internet Intrusion Detection System (IDS) = Monitors network traffic for suspicious activity Signup and view all the answers

Match the following internet protocols with their functions:

TCP = Reliable data transmission and connection-oriented protocol UDP = Connectionless protocol for faster transmission IP = Routing and addressing packets across networks HTTP = Hypertext transfer for web browsing Signup and view all the answers

What type of technology has low-power and data rate requirements, making it popular in home automation applications?

Zigbee Signup and view all the answers

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

Network layer Signup and view all the answers

What service is provided by DNS?

Name resolution service Signup and view all the answers

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

ipconfig /renew Signup and view all the answers

What characteristic describes proprietary protocols?

They are controlled by a single organization. Signup and view all the answers

What is the smallest network mask that the network administrator can use for the new LAN supporting 25 connected devices?

/29 Signup and view all the answers

If a host is trying to send a packet to a device on a remote LAN segment and there are no mappings in its ARP cache, how will the device obtain a destination MAC address?

By broadcasting an ARP request on the local LAN segment Signup and view all the answers

What characteristic describes a Trojan horse?

Masquerades as a legitimate file or software Signup and view all the answers

What service is provided by HTTPS?

Secure web browsing Signup and view all the answers

A technician with a PC is using multiple applications while connected to the Internet. How is the PC able to keep track of the data flow between multiple application sessions and have each application receive the correct packet flows?

By using port numbers in the TCP/UDP headers Signup and view all the answers

Study Notes

Networking Models and Layers

OSI model: 7 layers (Physical, Data Link, Network, Transport, Session, Presentation, Application)
TCP/IP model: 4 layers (Network Access, Internet, Transport, Application)

DNS Record Types and Functions

A record: maps a hostname to an IP address
MX record: maps a domain name to a mail server
NS record: maps a domain name to a name server
PTR record: maps an IP address to a hostname
SOA record: specifies the start of authority for a DNS zone

Protocols and Descriptions

TCP: connection-oriented, ensures data delivery, and reassembles data in correct order
UDP: connectionless, does not guarantee data delivery, and does not reassemble data
HTTP: requests and retrieves web pages
FTP: uploads and downloads files
SSH: securely connects to a remote device
DNS: resolves domain names to IP addresses

Network Traffic Types and Characteristics

Unicast: one-to-one communication
Multicast: one-to-many communication
Broadcast: one-to-all communication

Wireless Technologies and Applications

Wi-Fi: wireless networking for devices
Bluetooth: wireless personal area network (PAN) for devices
Zigbee: low-power, low-data-rate wireless networking for home automation

Network Security Terms and Definitions

Firewall: blocks or allows traffic based on security rules
Trojan horse: malicious software that disguises itself as legitimate software
HTTPS: secure HTTP protocol that encrypts data

Internet Protocols and Functions

IP: addresses and routes packets on a network
ARP: resolves IP addresses to MAC addresses

Other Key Concepts

Low-power, low-data-rate wireless technology is popular in home automation (e.g., Zigbee)
Network layer of the TCP/IP model provides a route to forward messages through an internetwork
DNS provides a service to resolve domain names to IP addresses
The ipconfig command can be used on a Windows PC to see the IP configuration
Proprietary protocols are owned and controlled by a single company
The smallest network mask that can support 25 connected devices is /27
A device obtains a destination MAC address by sending an ARP request if there are no mappings in its ARP cache
A Trojan horse is a type of malicious software that disguises itself as legitimate software
HTTPS provides a secure service to encrypt data
A PC can keep track of data flow between multiple application sessions using port numbers, allowing each application to receive the correct packet flows.

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Description

Test your knowledge of building and securing a small network with this CCNA 1 v7.0 final exam. This quiz covers modules 16-17, including Practice PT Skills Assessment and ITN Final Skills. Prepare for the exam and assess your understanding of networking concepts.