Covers networking basics and topologies, the OSI model, device roles on AOS-CX, layer 2 switching and VLANs, IP addressing and routing, 802.11 fundamentals, and cloud-managed WLAN deployment.
12 free sample questions150 in the full practice test
Network Fundamentals · Explain Different Media type
A manufacturing company is upgrading its factory floor network. The environment contains heavy machinery that generates significant electromagnetic interference (EMI). The network links must connect switches that are 250 meters apart. Which media type is the optimal choice for this scenario?
Answer and explanation
Correct answer: C
Fiber optic cabling is completely immune to electromagnetic interference (EMI) because it uses light to transmit data rather than electrical signals. Furthermore, multimode fiber easily supports the 250-meter distance requirement, whereas copper Ethernet (UTP/STP) is limited to 100 meters per segment.
Q2Question 2
Intermediate
Network Fundamentals · Compare Unicast, Multicast, and Broadcast
A university is deploying a new digital signage system across its campus. The central server must send the exact same high-definition video stream to 50 specific digital displays simultaneously without overwhelming the campus network core. Which transmission method should the network administrator utilize?
Answer and explanation
Correct answer: D
Multicast is a one-to-many communication model where a single stream of data is sent from a source and replicated by the network infrastructure only to the specific devices (the multicast group) that have requested it. This prevents the server from having to send 50 individual Unicast streams, preserving significant bandwidth.
While analyzing a packet capture, a network technician notices a destination MAC address ending in the hexadecimal value 'C8'. To configure a specific filter in a legacy monitoring tool, this value must be converted to decimal. What is the decimal equivalent of the hexadecimal value C8?
Answer and explanation
Correct answer: B
To convert hexadecimal C8 to decimal, calculate (C * 16^1) + (8 * 16^0). In hexadecimal, C equals 12. Therefore, (12 * 16) + (8 * 1) = 192 + 8 = 200.
Q4Question 4
Advanced
Network Fundamentals · Defining networking, LAN, WAN and their components
A healthcare organization is expanding its physical footprint. They currently have a main hospital building containing 500 devices connected via high-speed Ethernet switches. They are purchasing a new clinic located 15 miles away, which will connect back to the main hospital using a leased line from a service provider.
Which of the following statements accurately classifies the network components in this design?
Answer and explanation
Correct answer: C
A Local Area Network (LAN) connects devices within a limited geographical area, such as a single building or campus (e.g., the hospital and the clinic individually). A Wide Area Network (WAN) interconnects LANs over longer distances, typically utilizing telecommunications service provider circuits like the 15-mile leased line described in the scenario.
graph LR
subgraph Hospital LAN
SW1[Core Switch]
PC1[Workstations]
SW1 --- PC1
end
subgraph Clinic LAN
SW2[Edge Switch]
PC2[Medical Devices]
SW2 --- PC2
end
SW1 |Service Provider WAN Link| SW2
Q5Question 5
Beginner
Network Communications Model · Explain OSI model layers
True or False: In the OSI model, the Transport layer is responsible for determining the best logical path for routing packets across multiple interconnected networks.
Answer and explanation
Correct answer: B
False. Path determination and logical addressing (IP routing) are the responsibilities of the Network layer (Layer 3). The Transport layer (Layer 4) is responsible for end-to-end communication, reliability, and flow control using protocols like TCP and UDP.
Q6Question 6
Beginner
Network Communications Model · Explain the TCP 3-way handshake
When a client device initiates a reliable connection to a web server, it utilizes the TCP 3-way handshake. Which of the following represents the correct sequence of messages exchanged during this process?
Answer and explanation
Correct answer: C
The TCP 3-way handshake begins with the client sending a SYN (Synchronize) packet. The server responds with a SYN-ACK (Synchronize-Acknowledge) packet. Finally, the client replies with an ACK (Acknowledge) packet, establishing the connection.
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