Chapter 1
Network Fundamentals (Domain 1)

THE CCNA EXAM TOPICS COVERED IN THIS PRACTICE TEST INCLUDE THE FOLLOWING:

• 1.0 Network Fundamentals

• • 1.1 Explain the role and function of network components
    • 1.1.a Routers
    • 1.1.b Layer 2 and Layer 3 switches
    • 1.1.c Next-generation firewalls and IPS
    • 1.1.d Access points
    • 1.1.e Controllers
    • 1.1.f Endpoints
    • 1.1.g Servers
    • 1.1.h PoE
  • 1.2 Describe the characteristics of network topology architectures
    • 1.2.a Two-tier
    • 1.2.b Three-tier
    • 1.2.c Spine-leaf
    • 1.2.d WAN
    • 1.2.e Small office/home office (SOHO)
    • 1.2.f On-premises and cloud
  • 1.3 Compare physical interface and cabling types
    • 1.3.a Single-mode fiber, multimode fiber, copper
    • 1.3.b Connections (Ethernet shared media and point-to-point)
  • 1.4 Identify interface and cable issues (collisions, errors, mismatch duplex, and/or speed)
  • 1.5 Compare TCP to UDP
  • 1.6 Configure and verify IPv4 addressing and subnetting
  • 1.7 Describe private IPv4 addressing
  • 1.8 Configure and verify IPv6 addressing and prefix
  • 1.9 Compare IPv6 address types
    • 1.9.a Unicast (global, unique local, and link local)
    • 1.9.b Anycast
    • 1.9.c Multicast
    • 1.9.d Modified EUI 64
  • 1.10 Verify IP parameters for Client OS (Windows, Mac OS, Linux)
  • 1.11 Describe wireless principles
    • 1.11.a Nonoverlapping Wi-Fi channels
    • 1.11.b SSID
    • 1.11.c RF
    • 1.11.d Encryption
  • 1.12 Explain virtualization fundamentals (server virtualization, containers, and VRFs)
  • 1.13 Describe switching concepts
    • 1.13.a MAC learning and aging
    • 1.13.b Frame switching
    • 1.13.c Frame flooding
    • 1.13.d MAC address table

1. How many broadcast domains are present in the network in the following figure?
   1. One broadcast domain
   2. Two broadcast domains
   3. Three broadcast domains
   4. Seven broadcast domains
2. How many potential collision domains are present in the network in the following figure?
   1. One collision domain
   2. Two collision domains
   3. Three collision domains
   4. Seven collision domains
3. Which statement is true about collision domains?
   1. All computers in the collision domain have the potential to have a frame collision.
   2. All computers in the collision domain have the potential to receive layer 2 broadcast messages.
   3. All computers in the collision domain have the potential to receive layer 3 broadcast messages.
   4. All computers in the collision domain are set to 10 Mb/s full-duplex.
4. In the following figure, which would be true if the hub was replaced with a switch?
   1. The number of collision domains would increase.
   2. The number of collision domains would decrease.
   3. The number of broadcast domains would increase.
   4. The number of broadcast domains would decrease.
5. Considering the following figure, which of the following is a correct statement?
   1. One collision domain exists with one broadcast domain.
   2. Two collision domains exist with one broadcast domain.
   3. Three collision domains exist with two broadcast domains.
   4. Seven collision domains exist with two broadcast domains.
6. Which component acts as a distribution switch for the physical data center?
   1. Top of Rack switch
   2. End of Row switch
   3. Core switch
   4. Virtual switch
7. Which advantage(s) are gained using switches?
   1. Low latency
   2. Software switching
   3. High cost
   4. All of the above
8. Which is a correct statement when hubs are replaced with switches?
   1. The replacement increases collision domains.
   2. The replacement decreases collision domains.
   3. The replacement increases broadcast domains.
   4. The replacement decreases broadcast domains.
9. Which is a function of a layer 2 switch?
   1. Forwarding the data based on logical addressing
   2. Repeating the electrical signal to all ports
   3. Learning the MAC address by examining the destination MAC addresses
   4. Determining the forwarding interfaces based upon the destination MAC address and tables
10. What is a reason a network administrator would segment a network with a switch?
    1. To create more broadcast domains
    2. To create isolation of ARP messages
    3. To create fewer collision domains
    4. To isolate traffic between segments
11. What is the maximum wire speed of a single port on a 48-port Gigabit Ethernet switch?
    1. 1,000 Mb/s
    2. 2 Gb/s
    3. 48 Gb/s
    4. 96 Gb/s
12. Which statement describes the microsegmentation that a switch provides?
    1. All of the ports on the switch create a single collision domain.
    2. Each port on the switch segments broadcasts.
    3. Each port on the switch creates its own collision domain.
    4. Each port on the switch creates an isolation for layer 2 broadcasts.
13. Given the information in the following figure, which statement is true when Computer A needs to communicate with Computer F?
    1. Switch A and Switch B will flood the frame across all ports.
    2. Only Switch A will flood the frame across all ports.
    3. Only Switch B will flood the frame across all ports.
    4. Switch A will flood the frame across all ports; Switch B will forward traffic only to Computer F’s port.
14. When firewalls are placed in a network, which zone contains Internet-facing services?
    1. Outside zone
    2. Enterprise network zone
    3. Demilitarized zone
    4. Inside zone
15. According to best practices, what is the proper placement of a firewall?
    1. Only between the internal network and the Internet
    2. At key security boundaries
    3. In the DMZ
    4. Only between the DMZ and the Internet
16. Which is a false statement about firewalls?
    1. Firewalls can protect a network from external attacks.
    2. Firewalls are commonly deployed to protect a network from internal attacks.
    3. Firewalls can provide stateful packet inspection.
    4. Firewalls can control application traffic.
17. Which of the following statements does not represent the logical management of a firewall?
    1. All physical access to the firewall should be tightly controlled.
    2. All firewall policies should be documented.
    3. Firewall logs should be regularly monitored.
    4. Firewalls should allow traffic by default and deny traffic explicitly.
18. What is the reason firewalls are considered stateful?
    1. Firewalls keep track of the zone states.
    2. Firewalls keep accounting on the state of packets.
    3. Firewalls track the state of a TCP conversation.
    4. Firewalls transition between defense states.
19. You have an Adaptive Security Appliance (ASA) and two separate Internet connections via different providers. How could you apply the same policies to both connections?
    1. Place both connections into the same zone.
    2. Place each connection into an ISP zone.
    3. Apply the same ACL to both of the interfaces.
    4. Each connection must be managed separately.
20. Why should servers be placed in the DMZ?
    1. To allow unrestricted access by Internet clients
    2. To allow access to the Internet and the internal network
    3. To allow the server to access the Internet
    4. To restrict the server to the Internet
21. Which type of device will detect but not prevent unauthorized access?
    1. Firewall
    2. IPS
    3. IDS
    4. Honeypots
22. Which term describes what it is called when more than one wireless access point (WAP) covers the same SSID?
    1. Broadcast domain
    2. Basic service set
    3. Extended service set
    4. Wireless mesh
23. Which protocol allows a Lightweight AP (LWAP) to forward data to the wired LAN?
    1. Spanning Tree Protocol (STP)
    2. Bridge Protocol Data Units (BPDUs)
    3. Orthogonal Frequency Division Multiplexing (OFDM)
    4. Control and Provisioning of Wireless Access Points (CAPWAP)
24. Which component allows wireless clients to roam between access points and maintain authentication?
    1. Basic service set
    2. Extended service set
    3. Wireless LAN controller
    4. Service set ID
25. Why would you use Multiprotocol Label Switching (MPLS) as a connectivity option?
    1. You need support for multicast packets.
    2. You need support for both IPv4 and IPv6 packets.
    3. You need a high amount of bandwidth.
    4. You require encryption.
26. What is a service-level agreement (SLA) for network connectivity?
    1. It is an agreement of bandwidth between the ISP and the customer.
    2. It is a quality of service agreement between the ISP and the customer.
    3. It is an agreement of uptime between the ISP and the customer.
    4. All of the above.
27. Which is a valid reason to implement a wireless LAN...