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Questions and Answers
What is the primary function of an ISP (Internet Service Provider)?
What is the primary function of an ISP (Internet Service Provider)?
Which network attribute is compromised when patients can access the medical records of others?
Which network attribute is compromised when patients can access the medical records of others?
Which aspect of IPv4 configuration indicates the division between network and host segments?
Which aspect of IPv4 configuration indicates the division between network and host segments?
At which layer of the TCP/IP model are messages directed through an internetwork?
At which layer of the TCP/IP model are messages directed through an internetwork?
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What is the correct protocol stack order for a web client processing a server response?
What is the correct protocol stack order for a web client processing a server response?
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At which OSI layer is a logical address added during encapsulation?
At which OSI layer is a logical address added during encapsulation?
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How would you describe keeping personal files on remote servers for access via the internet?
How would you describe keeping personal files on remote servers for access via the internet?
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What term represents a model where server software runs on specialized computers?
What term represents a model where server software runs on specialized computers?
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How would you describe a closed network comprising LANs and WANs owned by a specific organization?
How would you describe a closed network comprising LANs and WANs owned by a specific organization?
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What is included in the trailer section of a data-link frame?
What is included in the trailer section of a data-link frame?
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During the encapsulation process at the data link layer for a PC connected to an Ethernet network, what happens?
During the encapsulation process at the data link layer for a PC connected to an Ethernet network, what happens?
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What does the auto-MDIX feature on a switch do?
What does the auto-MDIX feature on a switch do?
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Which term describes the physical medium that utilizes electrical pulses in the OSI physical layer?
Which term describes the physical medium that utilizes electrical pulses in the OSI physical layer?
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Which IPv4 address can a host utilize to test the loopback interface using the 'ping' command?
Which IPv4 address can a host utilize to test the loopback interface using the 'ping' command?
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What is the likely reason a computer can only establish connections within the same network?
What is the likely reason a computer can only establish connections within the same network?
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Why is NAT not needed in IPv6?
Why is NAT not needed in IPv6?
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Which address is used to identify a device on the network layer of the OSI model?
Which address is used to identify a device on the network layer of the OSI model?
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What does the Address Resolution Protocol (ARP) do?
What does the Address Resolution Protocol (ARP) do?
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What is the main difference between an IP address and a MAC address?
What is the main difference between an IP address and a MAC address?
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Which information does a Layer 2 device inspect in the Ethernet frame header for forwarding?
Which information does a Layer 2 device inspect in the Ethernet frame header for forwarding?
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What is the binary representation of the decimal number 12?
What is the binary representation of the decimal number 12?
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What signifies a 32-bit binary value linked to an interface in the IPv4 packet header?
What signifies a 32-bit binary value linked to an interface in the IPv4 packet header?
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Which field in the IPv4 packet header holds a unicast, multicast, or broadcast address?
Which field in the IPv4 packet header holds a unicast, multicast, or broadcast address?
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Which of the following is a valid hexadecimal number?
Which of the following is a valid hexadecimal number?
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What does the TTL (Time To Live) field in an IPv4 packet header determine?
What does the TTL (Time To Live) field in an IPv4 packet header determine?
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Which IPv4 class is used for multicast addresses?
Which IPv4 class is used for multicast addresses?
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What is the range of Class B IPv4 addresses?
What is the range of Class B IPv4 addresses?
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How is a MAC address fixed in the ARP table for commonly used servers?
How is a MAC address fixed in the ARP table for commonly used servers?
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What is the prefix length notation for the subnet mask 255.255.255.224?
What is the prefix length notation for the subnet mask 255.255.255.224?
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Which type of connection is used for long-distance communication and can support speeds up to 100 Gbps?
Which type of connection is used for long-distance communication and can support speeds up to 100 Gbps?
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How many valid host addresses are available on an IPv4 subnet configured with a /26 mask?
How many valid host addresses are available on an IPv4 subnet configured with a /26 mask?
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Which command is used to display the current configuration of a Cisco router?
Which command is used to display the current configuration of a Cisco router?
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How many equally-sized subnets are created when dividing the 192.168.10.0/24 network into /26 masks?
How many equally-sized subnets are created when dividing the 192.168.10.0/24 network into /26 masks?
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How many host addresses are accessible on the 192.168.10.128/26 network?
How many host addresses are accessible on the 192.168.10.128/26 network?
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Which of these addresses represents the shortest abbreviation for the IP address 3FFE:1044:0000:0000:00AB:0000:0000:0057?
Which of these addresses represents the shortest abbreviation for the IP address 3FFE:1044:0000:0000:00AB:0000:0000:0057?
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Which type of IPv6 address refers to an unicast address assigned to multiple hosts?
Which type of IPv6 address refers to an unicast address assigned to multiple hosts?
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What does a ping response code of 1 indicate when pinging an address?
What does a ping response code of 1 indicate when pinging an address?
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Which subnet would include the address 192.168.1.96 as a usable host address?
Which subnet would include the address 192.168.1.96 as a usable host address?
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Which is the correct compressed format of the IPv6 address 2001:0db8:0000:0000:0000:a0b0:0008:0001?
Which is the correct compressed format of the IPv6 address 2001:0db8:0000:0000:0000:a0b0:0008:0001?
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Which protocol does the traceroute command use to send and receive echo-requests and echo-replies?
Which protocol does the traceroute command use to send and receive echo-requests and echo-replies?
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What is the VLAN ID reserved for the native VLAN by default?
What is the VLAN ID reserved for the native VLAN by default?
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Which authentication protocol is commonly used in enterprise Wi-Fi networks?
Which authentication protocol is commonly used in enterprise Wi-Fi networks?
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Which routing protocol uses Dijkstra's algorithm to calculate the shortest path?
Which routing protocol uses Dijkstra's algorithm to calculate the shortest path?
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What frequency band does the 802.11a standard utilize?
What frequency band does the 802.11a standard utilize?
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Which command is used to enable SSH on a Cisco device?
Which command is used to enable SSH on a Cisco device?
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Study Notes
Networking Concepts
- Internet Service Provider (ISP): An organization providing internet connectivity to individuals and businesses.
- Network Security: Protecting network resources from unauthorized access and use. A technician compromising network security allowed patients to access other patient records.
- IPv4 Address Setup: Subnet mask designates segments of an IPv4 address on a webserver.
- TCP/IP Model Layer: The 'Internet layer' is responsible for directing messages throughout an internetwork.
- Web Client Protocol Decoding: A client receives transmission encoded by the order: Ethernet, IP, TCP, and HTTP to decode the web page.
- OSI Model and Logical Addresses: A logical address is added during encapsulation at the Network layer of the OSI model.
Computing Models
- Client-Server Model: A computing model that has server software running on specialized servers.
Network Policies
- Quality of Service (QoS): A policy that gives priority to specific network data flow, especially voice and video traffic.
Network Types
- Intranet: A closed network with LANs and WANs owned by a specific entity/organization.
Data Link Layer Encapsulation
- Layer 2 Device Information: During layer 2 encapsulation for a PC on an Ethernet network, a physical address is included in the frame header.
Network Devices and Functions
- Switch Auto-MDIX: Automatically configures a switch interface for a straight-through or crossover cable connection.
-
Physical Medium Types:
- Electrical pulses: Copper cable
- Propagation of light: Fiber-optic cable
- Router Data Packet Routing: Routers use destination IP addresses to route data packets to their destinations.
-
IPv4 Loopback Address:
127.0.0.1is used to test the loopback interface (pingcommand). - Subnet Mask Function: The subnet mask defines the network and host components in an IPv4 address.
- ARP Table Function: The ARP table can store frequently used server MAC addresses in a network.
-
Prefix Notation Subnet Mask: The prefix length notation expresses a subnet mask, for example,
255.255.255.224translates to/27.
Network Protocols
- ICMP: The 'ping' command utilizes ICMP for 'echo-requests and echo-replies'.
- NAT (Network Address Translation): NAT translates private IP addresses to public ones for internet communication.
- DHCP (Dynamic Host Configuration Protocol): Dynamically assigns IP addresses to devices on a network.
- DNS (Domain Name System): Translates domain names into IP addresses.
Network Topologies and Concepts
- Network Connectivity Restrictions: A computer might fail to connect to devices on a different network due to an invalid default gateway.
-
Addressing:
MAC addressesare used on local networks and arephysical, whileIP addressesidentify devices on a network and arelogical. -
VLAN Creation: Using
vlan 10creates a VLAN on a Cisco switch.
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Description
This quiz covers essential networking concepts, including ISP, network security, and the TCP/IP model, as well as various computing models like client-server. Dive into the intricacies of network architecture and policies such as Quality of Service (QoS). Test your understanding of how these components interact within modern networking.
