Checkpoint Q's Flashcards
(34 cards)
1 Network Fundamentals
Which of the following network geographies refers to a network that spans several buildings within walking distance of each other, such as at a business park?
a) CAN
b) WAN
c) PAN
d) MAN
a) CAN
1 Network Fundamentals
Which of the following type of network models doesn’t differentiate between the devices that provide services and those that request services?
a) Client-server
b) Point-to-point
c) Hub-and-spoke
d) Peer-to-peer
d) Peer-to-peer
Answer is “Peer-to-peer” because this network model allows any device to function as both a client and a server without a defined role, which means that each node can request and provide services equally. This understanding helps clarify the flexible nature of peer-to-peer networks compared to other models.
1 Network Fundamentals
HongHong, a network administrator, was asked by the Chief Information Officer (CIO) to set up a new office with a network that has full redundancy. What topology would BEST meet the CIO’s requirement?
a) Hybrid
b) Bus
c) Mesh
d) Star
c) Mesh
Answer is “Mesh” because it creates a fully redundant network by connecting every endpoint to every other endpoint. This ensures that if one connection fails, the rest of the network remains operational, perfectly aligning with the requirement for full redundancy that the CIO specified.
1 Network Fundamentals
Dion Worldwide has created a network architecture that relies on two main data centers, one in the United States and one in Japan. Each satellite office in the United States and Canada will connect back to the American data center, while each satellite office in Asia will connect back to the Japanese data center. Both the American and Japanese data centers are interconnected, as well. Therefore, if a client in the Philippines wants to send a file to the office in Miami, it will go first to the Japanese datacenter, then route across to the American datacenter, and then to the Miami satellite office. Which of the following network topologies best describes the Dion Worldwide network?
a) Hub and spoke
b) Bus
c) Star
d) Ring
a) Hub and spoke
2 OSI Model
Which type of network device operates at layer 1 of the OSI model and requires connected devices to operate at half-duplex using CSMA/CD?
a) Switch
b) Hub
c) Bridge
d) Router
b) Hub
*Router: Layer 3 (Network Layer)
It forwards data packets between different networks using IP addresses.
Routers are not designed to operate at the physical layer (Layer 1) and do not require half-duplex CSMA/CD.
Switch: Layer 2 (Data Link Layer)
It forwards data based on MAC addresses within a LAN and provides full-duplex communication in most modern networks.
Switched networks typically do not use CSMA/CD, especially with full-duplex Ethernet.
Bridge: Layer 2 (Data Link Layer)
It connects different segments of a LAN, filtering traffic based on MAC addresses.
Like switches, bridges do not require half-duplex or CSMA/CD for their operation.
In contrast, the hub operates at Layer 1 and shares the physical medium among all devices, which necessitates half-duplex operation and CSMA/CD to manage data transmission and collision detection.*
2 OSI Model
Which of the following applies to data as it travels from Layer 1 to Layer 7 of the OSI model?
a) Tagging
b) Encapsulation
c) Tunneling
d) De-encapsulation
d) De-encapsulation
de-encapsulation is from layer 1 to 7
encapsulation is from layer 7 to 1
2 OSI Model
According to the OSI model, at which of the following layers is data encapsulated into a frame?
a) Layer 1
b) Layer 2
c) Layer 3
d) Layer 4
b) Layer 2
Do – Data
Some – Segments
People – Packets
Fear – Frames
Birthdays – Bits
2 OSI Model
Which network device operates at layer 2?
a) Repeater
b) Switch
c) Router
d) Firewall
b) Switch
A basic switch operates at layer 2, only exception is a multilayer switch which operates at layer 3. A router is a layer 3 device. A repeater is a layer 1 device.
2 OSI Model
What layer of the OSI model is responsible for data encryption and character set conversion, such as ASCII to UTF-8?
a) Layer 7
b) Layer 6
c) Layer 5
d) Layer 4
b) Layer 6
Presentation layer (Layer 6), deals with encryption and decryption of data
3 Ports and Protocols
What protocol is commonly associated with port 53?
a) HTTP
b) FTP
c) SSH
d) DNS
d) DNS
DNS port 53
HTTP port 80
SSH port 22
FTP port 20 and 21
3 Ports and Protocols
Which protocol is connection-oriented and ensures reliable data delivery by establishing a virtual circuit between sender and receiver?
a) TCP
b) UDP
c) ICMP
d) GRE
a) TCP
3 Ports and Protocols
Which statement accurately describes characteristics of a UDP connection?
a) UDP is connection-orientated, ensuring reliable data delivery
b) UDP provides error checking and retransmission of lost packets
c) UDP is suitable for real-time applications dure to its low latency
d) UDP guarantees in-order delivery of data packets
c) UDP is suitable for real-time applications dure to its low latency
3 Ports and Protocols
Which port is commonly used for receiving emails from a mail server?
a) Port 80
b) Port 110
c) Port 443
d) Port 25
b) Port 110
POP3 port 110
SMTP port 25
HTTP port 80
HTTPS port 443
3 Ports and Protocols
Which port and protocol combination(s) are commonly associated with Remote Desktop Protocol (RDP)?
a) Port 3389 - UDP
b) Port 3389 - TCP
c) Port 5060/5061 - UDP
d) Port 5060/5061 - TCP
b) Port 3389 - TCP
Media and Connector
You are entrusted with establishing a secure and compliant network infrastructure within a commercial building that has air ducts, confined spaces, and concerns of fire safety compliance. What specific cable type should be chosen to guarantee both optimal fire safety measures and better compliance in such environments?
a) Plenum
b) Cat5e
c) HDMI
d) RG-6
a) Plenum
Media and Connectors
When setting up a home network you are asked to connect the line from the wall to the customer’s modem, which connector is most commonly used to connect this cable from the service provider to a cable modem?
a) F-Type
b) RJ45
c) SC
d) BNC
a) F-Type
F-Type connectors are standard for coaxial cables, commonly used for cable modem connections.
RJ45 is used for Ethernet connections, not for connecting to cable modems via coax cables.
SC connectors are used in fiber optic, not coax cable modem setups.
BNC connectors are versatile but not standard for cable modem connections.
Media and Connectors
Which of the following statements regarding Twinaxial cables is incorrect?
a) Twinaxial cables are commonly used for short-distance, high-speed data transmission
b) Twinaxial cables consist of two inner conductors surrounded by insulating material and an outer shield
c) Twinaxial cables are primarily utilized in fiber optic networks for long-distance connectivity
d) Twinaxial cables are cost-effective alternatives to coaxial cables for certain applications
c) Twinaxial cables are primarily utilized in fiber optic networks for long-distance connectivity
Twinaxial cables are not primarily utilized in fiber optic networks; instead they are commonly used for copper-based connections over shorter distance, high-speed data transmission. Twinaxial cables typically feature two inner conductors surronded by insulating material and an outer shield, providing effective signal transmission. Twinaxial cables are known for being cost-effective alternatives to coax cables.
Media and Connectors
Which form factor is typically associated with a single-channel data link in networking equipment?
a) SFP
b) QSFP+
c) M.2
d) USB
a) SFP
Media and Connectors
For short-distance data transmission in local networks, which fiber optic type is MOST commonly used?
a) Single Mode Fiber (SMF)
b) Multi Mode Fiber (MMF)
c) Coaxial Cable
d) Twisted Pair Cable
b) Multi Mode Fiber (MMF)
Multi Mode Fiber is suitable for short-distance transmissions in local networks, providing a cost-effective solution with a larger core for efficient signal.
Single Mode Fiber is designed for long-distance transmissions and has a smaller core, making it less suitable for short-distance local network applications.
Coaxial cables are versatile but not the standard choice for short-distance data transmission in local networks using fiber optics.
Twisted pair cables are commonly used for short-distance networking, but this question specifically addresses fiber optic types.
Distribution Systems
Which is a key function of a UPS in a data center?
a) Providing Temporary Surge Protection
b) Ensuring Continuous Power to Equipment
c) Maximizing Energy Consumption
d) Facilitating Data Backup
b) Ensuring Continuous Power to Equipment
Distribution Systems
In data center fire safety, what system is designed to minimize damage to networking infrastructure and is most effective in extinguishing a fire?
a) Clean Agent Fire Suppression
b) Water Sprinkler System
c) Pre-Action System
d) Foam-Based Extinguisher
a) Clean Agent Fire Suppression
Distribution Systems
What voltage level is commonly used for equipment designed to be used in Europe?
a) 320 volts
b) 120 volts
c) 480 volts
d) 230 volts
d) 230 volts
American and Canadian generally works with 120 volts, while European works with 230 volts
Distribution Systems
What lockable device is the MOST crucial for safeguarding physical networking equipment?
a) Server Rack Enclosure
b) Fire Extinguisher Mount
c) Biometric Door Lock
d) Cable Management Tray
a) Server Rack Enclosure
Distribution Systems
In adherence to standards for physical networking installations, what is the recommended orientation for a server rack to optimize cooling efficiency?
a) Port-side Exhaust
b) Port-side Intake
c) Top-side Exhaust
d) Bottom-side Intake
a) Port-side Exhaust
The recommended orientation for a server rack to optimize cooling efficiency is port-side exhaust.
