CCNA 1 - Introduction to Networks (ITNv7) Final Exam

Exam Overview

• Number of questions: 60
• Passing score: 80-100%

Topics Covered

• Real-Time Transport Protocol (RTP):

  • Common traffic types that use RTP include audio and video streaming.

• Wireless Technology:

  • Low-power technology with data rate requirements suited for home automation applications is known as Zigbee.

• TCP/IP Model Layers:

  • The Internet layer is responsible for routing and forwarding messages through an internetwork.

• DNS and Server Types:

  • DNS servers use record types like A (Address), NS (Name Server), AAAA (IPv6 Address), and MX (Mail Exchange) for providing services.

• Proprietary Protocols:

  • Proprietary protocols are protocols owned by a particular organization, restricting their use and modification to that entity.

• DNS Services:

  • Provides name resolution services, translating domain names into IP addresses.

• Client Packet Services:

  • A packet with a destination port number of 110 requests services from a POP3 mail server.

Network Configuration and Management

• IP Configuration Command:

  • The command ipconfig is used on a Windows PC to display current IP configuration settings.

• Networking Models:

  • Sharing a printer in a home network indicates the use of the peer-to-peer networking model.

• Characteristics of Viruses:

  • A virus replicates itself and spreads by attaching to other files or programs, often causing damage or data loss.

Quality of Service (QoS)

• QoS Priorities:
  • Highest to lowest priorities for different data types:
    • Audio Conference
    • Database Transactions
    • Web Browsing

Addressing and Protocols

• IPv6 Addressing Components:

  • Involves matching descriptions to components; specifics depend on provided options.

• TCP/IP Layers in File Transfer:

  • Transfer involves multiple TCP/IP layers, including application, transport, internet, and network interface layers.

• Default Gateway:

  • The default gateway for Host H1 should be configured with the IP address from the interface that routes traffic.

• Internet Messenger Services:

  • Internet Messenger services typically provide real-time messaging capabilities.

Networking Issues and Solutions

• Network Planning:

  • The smallest network mask that supports 25 devices is /27, accommodating up to 30 usable addresses.

• Signal Interference:

  • Factors causing signal distortion in copper cabling include electromagnetic interference (EMI) from fluorescent lights and nearby electrical equipment.

• MAC Address Resolution:

  • Devices without ARP cache mappings obtain destination MAC addresses through ARP requests, seeking to discover the MAC address corresponding to the IP.

Application Data Management

• Track Application Sessions:
  • PCs use port numbers and session identifiers to manage data flows between multiple applications effectively.

Security Threats

• Characteristics of Trojan Horses:

  • A Trojan horse disguises itself as a legitimate application to trick users into downloading or executing harmful software.

• HTTPS Service:

  • HTTPS provides secure communication over a computer network, ensuring data privacy and integrity during transmission.