CCST Networking Exam Flashcards

Q: What do these CCST Networking flashcards cover?

They cover entry-level networking concepts across models, protocols, IPv4 and IPv6 addressing, media, infrastructure, wireless, troubleshooting, security, and basic device support.

Q: Are flashcards enough to prepare for CCST Networking?

Flashcards help with recall, but candidates should also practice command output interpretation, endpoint checks, packet capture basics, and scenario-style troubleshooting.

Q: What should I avoid while studying for CCST Networking?

Avoid memorizing unsupported passing scores, fixed question counts, or copied exam items. Use official Cisco facts for exam policy and original practice for skill building.

Question 1

OSI model purpose

Accepted Answer

A seven-layer reference model for describing how data moves from an application to a network medium and back again. It helps technicians isolate whether an issue is physical, addressing-related, transport-related, or application-facing.

Question 2

Physical layer

Accepted Answer

The layer concerned with bits on the medium: copper signals, fiber light, wireless radio, connectors, pinouts, and link presence. If a cable is unplugged or a radio signal is weak, start here.

Question 3

Data Link layer

Accepted Answer

The layer that packages bits into frames for a local network and uses MAC addresses for local delivery. Ethernet switching and wireless frame delivery are common technician-level examples.

Question 4

Network layer

Accepted Answer

The layer that uses logical addresses such as IPv4 or IPv6 to move packets between networks. Routing decisions and default gateway logic belong here.

Question 5

Transport layer

Accepted Answer

The layer that supports application conversations between endpoints. TCP adds reliability and sequencing; UDP favors low overhead for traffic that can tolerate loss or handles recovery elsewhere.

Question 6

TCP/IP model

Accepted Answer

A practical model used to describe Internet networking. It groups network access, Internet addressing and routing, transport services, and application protocols into a smaller stack than OSI.

Question 7

Bandwidth vs throughput

Accepted Answer

Bandwidth is the capacity of a link or service. Throughput is the actual data rate achieved after congestion, interference, device limits, retransmissions, and protocol overhead.

Question 8

DNS

Accepted Answer

Domain Name System translates names that people use into IP addresses that devices use. If an IP address works but a website name does not, DNS should be part of the investigation.

Question 9

DHCP

Accepted Answer

Dynamic Host Configuration Protocol provides clients with usable IP settings, commonly including address, subnet mask or prefix, default gateway, and DNS servers.

Question 10

ARP

Accepted Answer

Address Resolution Protocol lets an IPv4 device discover the local MAC address associated with a known local IPv4 address. It is used before Ethernet can deliver the frame on the LAN.

Question 11

IPv4 address

Accepted Answer

A 32-bit logical address written in dotted-decimal form. A host needs an address plus a subnet mask to decide whether a destination is local or must be sent to a gateway.

Question 12

Subnet mask

Accepted Answer

A value that separates the network portion of an IPv4 address from the host portion. Matching network portions mean local delivery; different network portions require routing.

Question 13

CIDR prefix

Accepted Answer

A slash notation that states how many address bits identify the network, such as /24. It is a compact way to express the same network boundary a subnet mask provides.

Question 14

Default gateway

Accepted Answer

The router address a host sends traffic to when the destination is outside the local subnet. A wrong gateway can make local resources work while remote networks fail.

Question 15

Private IPv4 address

Accepted Answer

An address reserved for internal networks and not routed directly across the public Internet. Private hosts normally use NAT or another routed path to reach Internet services.

Question 16

APIPA address

Accepted Answer

A self-assigned IPv4 address in the 169.254.0.0/16 range. It often means the host could not obtain DHCP settings and may only communicate with nearby link-local peers.

Question 17

IPv6 address format

Accepted Answer

IPv6 uses hexadecimal groups separated by colons. Zero compression can shorten the written form, but the address still represents a much larger address space than IPv4.

Question 18

IPv6 prefix length

Accepted Answer

The slash value in an IPv6 address tells how much of the address identifies the network prefix. Hosts use it to determine whether a destination is on-link or requires a router.

Question 19

IPv6 link-local address

Accepted Answer

An IPv6 address used on the local link for neighbor discovery and local router communication. It is not meant to be routed across the wider network.

Question 20

MAC address vs IP address

Accepted Answer

A MAC address identifies a network interface for local frame delivery. An IP address identifies an endpoint logically so traffic can be routed between networks.

Question 21

Switch role

Accepted Answer

A switch connects devices on the same local network and forwards frames based on learned MAC addresses. It reduces unnecessary traffic compared with repeating every frame everywhere.

Question 22

MAC address table

Accepted Answer

A switch table that maps learned MAC addresses to switch ports. The switch builds it by reading the source MAC address of frames arriving on each port.

Question 23

Broadcast traffic

Accepted Answer

Traffic sent to every device in the local broadcast domain. ARP requests are a common example, which is why large flat networks can become noisy and harder to manage.

Question 24

VLAN

Accepted Answer

A virtual LAN separates devices into different logical Layer 2 networks on switching infrastructure. Devices in different VLANs need routing to communicate.

Question 25

Access port

Accepted Answer

A switch port assigned to one VLAN for an endpoint such as a PC, printer, or access point connection. It is usually the expected port type for ordinary client devices.

Question 26

Trunk port

Accepted Answer

A switch port that carries traffic for multiple VLANs between network devices. If a trunk is misconfigured, whole VLANs can appear unreachable beyond that link.

Question 27

Router role

Accepted Answer

A router forwards packets between different networks using destination IP addresses and a routing table. It is the device a host normally uses as its default gateway.

Question 28

Routing table

Accepted Answer

A list of known network destinations and the next hop or exit interface used to reach them. Routers consult it when choosing where to send packets next.

Question 29

Static route

Accepted Answer

A manually configured route. It can be simple and predictable, but it does not automatically adapt when the network path changes.

Question 30

Dynamic routing

Accepted Answer

Routers exchange route information through a routing protocol so paths can update as the network changes. At support level, know that it reduces manual route maintenance.

Question 31

NAT

Accepted Answer

Network Address Translation changes address information as traffic crosses a boundary, commonly allowing private inside addresses to share reachable outside connectivity.

Question 32

Wireless access point

Accepted Answer

A device that bridges wireless clients onto a wired or routed network. It provides radio coverage, enforces wireless settings, and connects clients to upstream infrastructure.

Question 33

SSID

Accepted Answer

The wireless network name clients see and select. Similar SSID names can confuse users, so technicians should confirm the exact network before changing settings.

Question 34

2.4 GHz vs 5 GHz Wi-Fi

Accepted Answer

The 2.4 GHz band often reaches farther but is more crowded. The 5 GHz band usually offers more channel options and less congestion but may have shorter practical range.

Question 35

Wireless interference

Accepted Answer

Signal quality can be affected by distance, walls, neighboring networks, device placement, and non-Wi-Fi sources of radio noise. A strong password does not solve a weak signal.

Question 36

WPAx

Accepted Answer

A shorthand for Wi-Fi Protected Access security versions. For basic support, prefer current secure modes, avoid open networks for sensitive use, and document legacy compatibility needs before weakening security.

Question 37

UTP Ethernet cable

Accepted Answer

Unshielded twisted-pair copper cable used for common Ethernet links. Twisted pairs help reduce interference, and the cable normally terminates in an RJ-45 style connector.

Question 38

Fiber optic cable

Accepted Answer

A cable type that carries data as light through glass or plastic strands. It is useful where high capacity, longer distance, or resistance to electromagnetic interference is important.

Question 39

Patch cable vs uplink

Accepted Answer

A patch cable commonly connects an endpoint to a switch or wall jack. Uplink connections join network devices or upstream paths and should be documented carefully during troubleshooting.

Question 40

Port status lights

Accepted Answer

Link and activity LEDs give quick physical-layer clues. No light may indicate no link, while activity changes can show that frames are moving, subject to the device model's documentation.

Question 41

Structured troubleshooting

Accepted Answer

Use a repeatable process: identify the symptom, gather facts, form a likely cause, test carefully, apply a supported fix, verify service, and document the result.

Question 42

Local-first connectivity checks

Accepted Answer

Start with the device and nearby network: link state, Wi-Fi association, IP settings, gateway, and DNS. This prevents chasing remote causes when the local setup is broken.

Question 43

ping

Accepted Answer

A diagnostic tool used to test basic IP reachability. Successful replies suggest a path exists, while failures require context because firewalls, routing, DNS, or host status may be involved.

Question 44

traceroute or tracert

Accepted Answer

A path-discovery command that shows router hops toward a destination. It helps locate where forwarding may stop, but filtered responses can make interpretation incomplete.

Question 45

Wireshark capture

Accepted Answer

A packet capture can show what traffic actually leaves or reaches an interface. Save the capture with clear notes so another technician can review evidence instead of guesses.

Question 46

Firewall

Accepted Answer

A security device or software control that permits or blocks traffic based on rules. Firewalls can protect networks, but overly broad or incorrect rules can also cause connectivity failures.

Question 47

Least privilege

Accepted Answer

Give users and services only the access needed for their role. It reduces damage from mistakes, stolen credentials, and compromised accounts.

Question 48

Secure defaults

Accepted Answer

Initial device setup should replace default passwords, avoid unnecessary services, apply supported updates, and use appropriate encryption before the device is trusted on a network.

Question 49

Cisco show commands

Accepted Answer

Read-only commands that display device state, such as interface status, configuration, or routing information. A support technician should capture relevant output without making unauthorized changes.

Question 50

Configuration change notes

Accepted Answer

Before and after a device change, record what was requested, what was changed, who approved it, and how service was verified. Good notes make rollback and escalation possible.

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