CCNA Anki Flashcards | Jeromy's IT Lab
What is the speed of a 'Gigabit Ethernet' connection?
1 Gbps
In a FastEthernet connection, a PC transmits data on which pins [...]
1 and 2
In a FastEthernet connection, a firewall transmits data on which pins [...]
1 and 2
In a FastEthernet connection, a router transmits data on which pins [...]
1 and 2
In a FastEthernet connection, a switch receives data on which pins [...]
1 and 2
How many bits are in 1 kilobit?
1,000 (one thousand)
How many bits are in 1 megabit?
1,000,000 (1 million)
How many bits are in 1 gigabit?
1,000,000,000 (1 billion)
How many bits are in 1 terabit?
1,000,000,000,000 (1 trillion)
What is the speed of a '10 Gig Ethernet' connection?
10 Gbps
What is the speed of an 'Ethernet' connection?
10 Mbps
10GBASE-LR maximum cable length:
10 kilometers
What is the speed of a 'FastEthernet' connection?
100 Mbps
What is the maximum length of an Ethernet UTP cable?
100 meters
Switches operate at Layer [...] of the OSI model.
2
How many pairs of wires are used in a 100BASE-T cable?
2 (=4 wires)
How many pairs of wires are used in a 10BASE-T cable?
2 (=4 wires)
Routers operate at Layer [...] of the OSI model.
3
In a FastEthernet connection, a PC receives data on which pins [...]
3 and 6
In a FastEthernet connection, a firewall receives data on which pins [...]
3 and 6
In a FastEthernet connection, a router receives data on which pins [...]
3 and 6
In a FastEthernet connection, a switch transmits data on which pins [...]
3 and 6
10GBASE-ER maximum cable length:
30 kilometers
How many pairs of wires are used in a 1000BASE-T cable?
4 (=8 wires)
How many pairs of wires are used in a 10GBASE-T cable?
4 (=8 wires)
10GBASE-SR maximum cable length:
400 meters
1000BASE-LX maximum cable length:
550 meters (multimode) 5 kilometers (single-mode)
The OSI model is divided into [...] layers.
7
How many bits are in 1 byte?
8
How many pins are in an RJ45 connector?
8
Ethernet was originally defined in the IEEE [...] standard in 1983.
802.3
IEEE standard [...] = 1 Gbps Ethernet (1000BASE-T)
802.3ab
10GBASE-SR, 10GBASE-LR, and 10GBASE-ER were defined in the IEEE [...] standard.
802.3ae
IEEE standard [...] = 10 Gbps Ethernet (10GBASE-T)
802.3an
IEEE standard [...] = 10 Mbps Ethernet (10BASE-T)
802.3i
IEEE standard [...] = 100 Mbps Ethernet (100BASE-T)
802.3u
1000BASE-LX was defined in the IEEE [...] standard.
802.3z
Which layer of the OSI model identifies communication partners and synchronizes communication?
Application
What is the name of the feature that allows a device to automatically adjust which RJ45 pin pairs it uses to transmit and receive data?
Auto MDI-X
What is the name of the Layer 1 PDU?
Bits
What kind of network device is a Cisco ASA?
Firewall
What kind of network device is a Cisco Firepower?
Firewall
What is the name of the Layer 2 PDU?
Frame
[...] firewalls are software applications that filter traffic entering and exiting a host machine, like a PC.
Host-based
Why are the wire pairs in a UTP cable twisted together?
It protects against EMI (Electromagnetic Interference)
Which layer of the OSI model defines physical characteristics of the medium used to transfer data between devices?
Layer 1 - Physical
Which layer of the OSI model detects and corrects Physical layer errors?
Layer 2 - Data Link
Which layer of the OSI model provides node-to-node connectivity?
Layer 2 - Data Link
Which layer of the OSI model provides connectivity to end hosts on different networks?
Layer 3 - Network
Which layer of the OSI model provides logical addressing (IP addresses)?
Layer 3 - Network
Which layer of the OSI model provides path selection between source and destination?
Layer 3 - Network
Which layer of the OSI model provides host-to-host communication?
Layer 4 - Transport
Which layer of the OSI model segments and reassembles data for communications between end hosts?
Layer 4 - Transport
Which layer of the OSI model establishes, manages, and terminates connections between the local and remote applications?
Layer 5 - Session
Which layer of the OSI model translates between data formats?
Layer 6 - Presentation
Which layer of the OSI model includes HTTP and HTTPS?
Layer 7 - Application
Which layer of the OSI model interacts with software applications on a computer?
Layer 7 - Application
Which layer of the OSI model provides process-to-process communication?
Layer 7 - Application
What does LAN stand for?
Local Area Network
[...] fiber cables allow multiple angles (modes) of light waves to enter the fiberglass core.
Multimode
What does 'OSI' stand for?
Open Systems Interconnection
What is the name of the Layer 3 PDU?
Packet
Which four pin pairs are used in a 1000BASE-T or 10GBASE-T connection?
Pair 1-2, Pair 3-6, Pair 4-5, pair 7-8
Which two pin pairs are used in a 10BASE-T or 100BASE-T connection?
Pair 1-2, Pair3-6
What is the name of the connector on the end of an Ethernet UTP cable?
RJ45
What kind of network device is a Cisco ISR?
Router
Fiber-Optic cables are connected to [...] transceivers in a router or switch.
SFP (Small Form-Factor Pluggable)
What is the name of the Layer 4 PDU?
Segment
[...] and [...] are also known as 'end hosts' or 'endpoints'.
Servers / clients
What are the two main kinds of fiber-optic cable?
Single-mode and multimode
What kind of network device is a Cisco 'Catalyst'?
Switch
[...] cables are vulnerable to EMI (electromagnetic interference).
UTP
[...] cables emit a faint signal outside of the cable, which can be detected and copied.
UTP
What does UTP stand for?
Unshielded Twisted Pair
Can a single device be both a client and a server?
Yes
Interaction between the different OSI layers on the same device is called [...] interaction.
adjacent-layer
Network speeds are measured in [...] per second.
bits
A [...] is a device that accesses a service made available by a server.
client
If Auto MDI-X is disabled, what kind of UTP cable should be used to connect two routers together?
crossover cable
If Auto MDI-X is disabled, what kind of UTP cable should be used to connect two switches together?
crossover cable
What kind of cable connects a pin pair on one end of a UTP cable to the opposite pair on the other end?
crossover cable
The process of removing headers and trailers from data received over a network is called [...]
de-encapsulation
The process of adding additional headers and trailers to data before it is sent over the network is called [...]
encapsulation
Routers have [...] network interfaces than switches.
fewer
A [...] monitors and controls network traffic based on configured rules.
firewall
A [...] connection allows both devices to send and receive data at the same time.
full-duplex
Which is cheaper, single-mode or multimode fiber?
multimode
A firewall which combines a traditional firewall with more advanced filtering functionalities is known as a '[...] firewall'.
next-generation
A computer network is a digital telecommunications network which allows [...] to share resources.
nodes
A [...] is used to send data over the Internet.
router
Interaction between the same OSI layer on different devices is called [...] interaction.
same-layer
A [...] is a device that provides functions or services for clients.
server
In [...] fiber cables, light travels straight through the fiberglass core at a single angle.
single-mode
Which allows longer cables, single-mode or multimode fiber?
single-mode
If Auto MDI-X is disabled, what kind of UTP cable should be used to connect a PC and a switch?
straight-through cable
If Auto MDI-X is disabled, what kind of UTP cable should be used to connect a router and a switch?
straight-through cable
What kind of cable connects a pin pair on one end of a UTP cable to the same pair on the other end?
straight-through cable
A [...] has many network interfaces for end hosts to connect to.
switch
A [...] provides connectivity to hosts within the same LAN.
switch
Multimode Fiber cables have a [...] fiberglass core than single-mode fiber cables.
wider
