3.6.10 Practice Questions
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120
Subject
Information Systems
Date
Feb 20, 2024
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10
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3.6.10 Practice Questions
Candidate:
Joseph Vincent (jvince13)
Date:
1/21/2024, 10:08:37 PM •
Time Spent:
02:11
Score: 100%
Passing Score: 80%
Question 1.
Correct
Which of the following hardware devices regenerate a signal out of all connected ports
without examining the frame or packet contents? (Select two.)
Router
Hub
Repeater
Bridge
Switch
Explanation
A hub and a repeater send received signals out of all other ports. These devices do not
examine the frame or packet contents.
Switches and bridges use the MAC address in a frame for forwarding decisions.
A router uses the IP address in a packet for forwarding decisions.
References
3.6.1 Networking Devices
3.6.2 Network Device Facts
14.1.2 Network Segmentation
q_network_devices_hub_01_np6.question.fex
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Question 2.
Correct
How do switches and bridges learn where devices are located on a network?
When a frame enters a port, the source MAC
address is copied from the frame header.
When a frame enters a port, the source IP
address is copied from the frame header.
When a frame enters a port, the destination
MAC address is copied from frame header.
When a frame enters a port, the destination IP
address is copied from the frame header.
Explanation
Bridges and switches learn addresses by copying the MAC address of the source device and
placing it into the MAC address table. The port number that the frame entered is also
recorded in the table and associated with the source MAC address.
The switch or the bridge cannot record the destination MAC address because it does not
know the port that is used to reach the destination device.
References
3.6.2 Network Device Facts
q_network_devices_mac_np6.question.fex
Question 3.
Correct
At which OSI layer does a router operate to forward network messages?
Physical
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Data Link
Transport
Network
Explanation
A router uses the logical network address specified at the Network layer to forward
messages to the appropriate LAN segment.
A bridge, on the other hand, uses the MAC address and works at the Data Link layer.
References
2.1.3 Networking Terms
3.6.5 Internetwork Devices
3.6.6 Internetwork Device Facts
7.1.7 Cisco IoS Basics
7.2.2 VLAN Facts
7.4.2 Switch Security Facts
14.1.2 Network Segmentation
q_network_devices_network_np6.question.fex
Question 4.
Correct
At which layer of the OSI model do hubs operate?
Physical
Data Link
Layer 3
Internet
Explanation
Hubs operate at Layer 1, or the Physical layer of the OSI model.
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Hubs operate at Layer 1, or the Physical layer of the OSI model.
References
3.6.1 Networking Devices
3.6.2 Network Device Facts
14.1.2 Network Segmentation
q_network_devices_physical_np6.question.fex
Question 5.
Correct
Which of the following BEST describes how a switch functions?
It connects multiple segments of different
architectures. It translates frames and
broadcasts them to all of its ports.
It connects multiple cable segments (or
devices) and forwards frames to the
appropriate segment.
It connects multiple segments of different
architectures. It translates frames and
forwards them to the appropriate segment.
It connects multiple cable segments (or
devices) and broadcasts frames to all of its
ports.
Explanation
Switches have multiple ports and can connect multiple segments or devices. The switch
forwards frames to the appropriate port. They function similarly to a hub, except instead of
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sending packets to all ports, switches send packets only to the destination computer's port.
A bridge is a device that connects two (or more) media segments on the same subnet. It
filters traffic between both segments based on the MAC address in the frame.
References
3.6.1 Networking Devices
3.6.2 Network Device Facts
7.1.1 Switch Features
7.1.2 Switch Access
7.1.3 Connect to a Switch with SSH
7.1.4 Switching Facts
7.1.5 Connect to and Secure a Switch - GUI
7.1.7 Cisco IoS Basics
7.2.1 VLAN Overview
7.2.2 VLAN Facts
7.2.3 Configure Switch IP and VLAN - GUI
7.2.5 Create VLANs - GUI
7.2.7 Configure Switch IP and VLAN - CLI
7.2.8 CLI Switch IP Configuration Facts
7.3.3 Configure Trunking
7.3.5 Configure Port Aggregation
7.3.7 Enable Jumbo Frame Support
7.3.11 Configure Port Mirroring
7.3.13 Configure PoE
7.3.15 Configure Spanning Tree
7.4.1 Securing Network Switches
7.4.3 Switch Attacks
7.4.5 Disable Switch Ports - GUI
14.1.2 Network Segmentation
14.1.3 Optimization Facts
q_network_devices_switch_01_np6.question.fex
Question 6.
Correct
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Question 6.
Correct
You are the network administrator for a small organization. Recently, you contracted with
an ISP to connect your organization's network to the internet. Since doing so, it has come
to your attention that an intruder has invaded your network from the internet on three
separate occasions.
Which type of network hardware should you implement to prevent this from happening
again?
Router
Switch
Firewall
Hub
Explanation
A firewall's role is to provide a barrier between an organization's network and a public
network, such as the internet. The firewall's job is to prevent unauthorized access to the
organization's private network. To do this, the firewall examines incoming packets and
determines whether they should be allowed to enter based on a set of rules defined by the
network administrator.
Routers offer some packet-based access control, but it is not as extensive as what a full-
fledged firewall provides.
Hubs are not sufficient for managing the interface between a trusted and an untrusted
network.
Switches use the MAC address in a frame for forwarding decisions.
References
3.6.6 Internetwork Device Facts
6.2.1 Unified Threat Management (UTM) Appliances
6.2.2 Unified Threat Management (UTM) Appliances Facts
6.2.7 Configure Firewall Rules
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6.2.9 Firewall ACLs
6.2.10 Create Firewall ACLs
6.2.11 Configure a Proxy Server
12.6.13 Respond to Network Attacks
q_internetwork_devices_firewall_01_np6.question.fex
Question 7.
Correct
Which of the following hardware devices links multiple networks and directs traffic
between networks?
Router
Repeater
Bridge
Hub
Explanation
A router is a device that links multiple networks and directs traffic between networks. Each
network linked by routers has its own unique identifier called the network number or
network address.
A hub and a repeater send received signals out all other ports. These devices do not
examine the frame or the packet contents.
Bridges learn addresses by copying the MAC address of the source device and placing it
into the MAC address table.
References
2.1.3 Networking Terms
3.6.5 Internetwork Devices
3.6.6 Internetwork Device Facts
7.1.7 Cisco IoS Basics
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7.1.7 Cisco IoS Basics
7.2.2 VLAN Facts
7.4.2 Switch Security Facts
14.1.2 Network Segmentation
q_internetwork_devices_router_np6.question.fex
Question 8.
Correct
Which of the following creates a visual representation of physical components along with a
clearly defined set of principles and procedures?
Wiring diagram
Floor plan
Logical network diagram
Rack diagram
Explanation
A floor plan creates a visual representation of physical components along with a clearly
defined set of principles and procedures.
A logical network diagram isn't so much about the physical layout of devices, but more of
how traffic flows across the network.
A rack diagram, or rack elevation, is a map of the IT equipment layout within a server rack.
A wiring diagram is a map of the physical connections and physical layout of the electrical
and circuit systems in a building.
References
3.6.8 Data Center Device Installation
3.6.9 Data Center Device Installation Facts
11.5.5 Documentation and Agreements
11.5.6 Documentation and Agreements Facts
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Question 9.
Correct
Rack heights vary from a few rack units to many rack units. The most common rack heights
are 24U and 42U. How tall is a 24U rack?
36 inches
30 inches
42 inches
48 inches
Explanation
A 24U rack is 42 inches tall. A single rack unit (1U) is 1.75 inches tall and represents one slot
in the rack. Rack heights vary from a few rack units to many rack units. The most common
rack heights are 24U and 42U.
References
3.6.8 Data Center Device Installation
3.6.9 Data Center Device Installation Facts
11.5.5 Documentation and Agreements
11.5.6 Documentation and Agreements Facts
q_data_center_install_rack_unit_02_np6.question.fex
Question 10.
Correct
A rack's height is measured in rack units (Us). How tall is a single rack unit?
1.75 inches tall
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2 inches tall
1.25 inches tall
1.5 inches tall
Explanation
A single rack unit (1U) is 1.75 inches tall and represents one slot in the rack.
References
3.6.8 Data Center Device Installation
3.6.9 Data Center Device Installation Facts
11.5.5 Documentation and Agreements
11.5.6 Documentation and Agreements Facts
q_data_center_install_rack_unit_np6.question.fex
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