TheoryCCST Cisco IT Exam Prep
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30 free CCST Cisco IT Exam Prep questions
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CCST Cisco IT Exam Prep
What is the primary difference between TCP and UDP?
Correct — D. TCP (Transmission Control Protocol) is connection-oriented, providing reliable, ordered, and error-checked delivery of data packets. UDP (User Datagram Protocol) is connectionless and does not guarantee delivery, order, or error checking, making it faster but less reliable. -
CCST Cisco IT Exam Prep
Which protocol would be most appropriate for time-sensitive applications like video streaming or online gaming?
Correct — C. UDP is preferred for time-sensitive applications because it has lower latency due to no handshaking, acknowledgments, or retransmissions. While some packets might be lost, this is generally preferable to the delays that TCP's reliability mechanisms would introduce. -
CCST Cisco IT Exam Prep
What is the default port number for HTTPS?
Correct — B. HTTPS (HTTP Secure) uses port 443 by default. This is the secure version of HTTP that encrypts the data being transmitted using SSL/TLS. -
CCST Cisco IT Exam Prep
Which protocol is used to automatically assign IP addresses to devices on a network?
Correct — A. DHCP (Dynamic Host Configuration Protocol) automatically assigns IP addresses and other network configuration parameters to devices when they join a network, eliminating the need for manual IP configuration. -
CCST Cisco IT Exam Prep
What is the primary purpose of DNS?
Correct — D. DNS (Domain Name System) translates human-readable domain names (like www.example.com) into IP addresses that computers use to identify each other on the network. -
CCST Cisco IT Exam Prep
Which protocol would you use to securely transfer files while maintaining SSH authentication and encryption?
Correct — C. SFTP (SSH File Transfer Protocol) provides secure file transfer capabilities using SSH encryption and authentication, protecting both credentials and data during transfer. -
CCST Cisco IT Exam Prep
What network protocol is primarily used for troubleshooting and is the foundation of the ping command?
Correct — B. ICMP (Internet Control Message Protocol) is used for network diagnostics and error reporting. The ping command uses ICMP Echo Request and Echo Reply messages to test connectivity between hosts. -
CCST Cisco IT Exam Prep
Which of the following protocols offers the LEAST security for file transfers?
Correct — A. FTP (File Transfer Protocol) transmits data and credentials in plaintext without encryption, making it vulnerable to packet sniffing and credential theft. TFTP is even simpler but typically only used in controlled environments. -
CCST Cisco IT Exam Prep
What is the primary purpose of NTP?
Correct — D. NTP (Network Time Protocol) is designed to synchronize the clocks of computers over a network to a common time reference, ensuring consistent timestamps across systems. -
CCST Cisco IT Exam Prep
Which protocol is typically used for simple network management tasks in resource-constrained environments like embedded devices or network bootstrapping?
Correct — C. TFTP (Trivial File Transfer Protocol) is a simplified version of FTP that uses minimal resources and lacks authentication features, making it suitable for basic file transfers in environments with limited resources or during device initialization. -
CCST Cisco IT Exam Prep
What is a key security improvement that HTTPS provides over HTTP?
Correct — B. HTTPS encrypts the data transmitted between the client and server using SSL/TLS protocols, protecting it from eavesdropping and man-in-the-middle attacks, while standard HTTP transmits data in plaintext. -
CCST Cisco IT Exam Prep
Which transport layer protocol does DNS primarily use?
Correct — A. DNS primarily uses UDP for standard queries because it's faster and the overhead of establishing a TCP connection isn't necessary for simple lookups. TCP is used for larger responses or zone transfers. -
CCST Cisco IT Exam Prep
What is the default port number for standard FTP?
Correct — D. FTP uses port 21 for command control and typically uses port 20 for data transfer in active mode. Port 21 is the primary port associated with FTP for establishing the initial connection. -
CCST Cisco IT Exam Prep
When a DHCP client first joins a network, what is the first message it sends?
Correct — C. DHCP DISCOVER is the first message sent by a client when joining a network. It's a broadcast message sent to locate available DHCP servers on the network before requesting an IP address. -
CCST Cisco IT Exam Prep
Which of the following is a key characteristic of connection-oriented protocols like TCP?
Correct — B. Connection-oriented protocols like TCP establish a connection before data transfer begins, maintain state during the transfer, and ensure all data is delivered reliably with acknowledgments for received packets. -
CCST Cisco IT Exam Prep
What protocol would typically be used by a web browser when a user enters 'http://example.com' in the address bar?
Correct — A. HTTP (Hypertext Transfer Protocol) is the protocol used when a URL begins with 'http://' and operates on port 80 by default. It's the standard protocol for web browsing without encryption. -
CCST Cisco IT Exam Prep
Which protocol is used to report errors and test connectivity in IP networks?
Correct — D. ICMP (Internet Control Message Protocol) is designed to report errors, provide network diagnostics, and test connectivity between devices on IP networks. Commands like ping and traceroute use ICMP. -
CCST Cisco IT Exam Prep
What happens during the TCP three-way handshake?
Correct — C. The TCP three-way handshake establishes a connection through three steps: the client sends SYN, the server responds with SYN-ACK, and the client acknowledges with ACK. This process synchronizes sequence numbers and establishes connection parameters. -
CCST Cisco IT Exam Prep
What is a key advantage of UDP over TCP for certain applications?
Correct — B. UDP has lower latency than TCP because it doesn't establish connections, doesn't wait for acknowledgments, and doesn't retransmit lost packets. This makes it ideal for time-sensitive applications where some packet loss is acceptable. -
CCST Cisco IT Exam Prep
Which protocol would be used to access a secure website?
Correct — A. HTTPS (HTTP Secure) is used for secure websites. It combines HTTP with SSL/TLS encryption to provide secure communication over a computer network, protecting the privacy and integrity of exchanged data. -
CCST Cisco IT Exam Prep
Which layer of the OSI model is responsible for logical addressing and routing?
Correct — D. Layer 3, the Network layer, handles logical addressing (such as IP addresses) and determines the best path for data to travel through the network via routing. -
CCST Cisco IT Exam Prep
In the TCP/IP model, which layer corresponds to the Network layer in the OSI model?
Correct — C. The Internet layer in the TCP/IP model corresponds to the Network layer (Layer 3) in the OSI model. Both handle IP addressing and routing functions. -
CCST Cisco IT Exam Prep
What is the primary difference between a frame and a packet in networking?
Correct — B. A frame operates at Layer 2 (Data Link) and includes MAC addresses, while a packet operates at Layer 3 (Network) and contains IP addresses. Frames encapsulate packets when data moves down the protocol stack. -
CCST Cisco IT Exam Prep
What occurs during the encapsulation process in networking?
Correct — A. Encapsulation is the process where data traveling down the protocol stack has headers (and sometimes trailers) added at each layer. Each layer adds its own control information to help the corresponding layer on the receiving end. -
CCST Cisco IT Exam Prep
Which of the following correctly lists the layers of the TCP/IP model from highest to lowest?
Correct — D. The TCP/IP model consists of four layers: Application at the top, then Transport, Internet, and Network Access at the bottom. This order represents the flow of data from applications down to the physical network. -
CCST Cisco IT Exam Prep
What is the primary function of the Data Link layer in the OSI model?
Correct — C. The Data Link layer (Layer 2) is responsible for node-to-node delivery of data, providing framing, physical addressing (MAC addresses), error detection, and access to the media. -
CCST Cisco IT Exam Prep
Which addressing method uses 48-bit addresses and operates at the Data Link layer?
Correct — B. MAC (Media Access Control) addressing uses 48-bit (6-byte) addresses that are typically expressed in hexadecimal format and operates at Layer 2 (Data Link layer) of the OSI model. -
CCST Cisco IT Exam Prep
What is the purpose of the ARP protocol in networking?
Correct — A. Address Resolution Protocol (ARP) resolves IP addresses to MAC addresses. When a device needs to communicate with another device on the local network, it uses ARP to discover the MAC address associated with the target IP address. -
CCST Cisco IT Exam Prep
Which of the following address types is used to send data to all devices on a local network?
Correct — D. A broadcast address is used to deliver packets to all devices on a local network segment. In IPv4, the broadcast address typically ends with all 1s in the host portion of the address. -
CCST Cisco IT Exam Prep
Which layer of the OSI model is responsible for establishing, maintaining, and terminating sessions between applications?
Correct — C. The Session layer (Layer 5) manages communication sessions between applications, including establishing, maintaining, and terminating these connections. It also provides dialog control and synchronization.
CCST Cisco IT Exam Prep sample questions
Tap any question below to reveal the answer and a plain-English explanation.
CCST Cisco IT Exam Prep What is the primary difference between a frame and a packet in networking?
A. Frames are larger than packets because they include more overhead
B. A frame operates at Layer 2 with MAC addresses, while a packet operates at Layer 3 with IP addresses ✓
C. Frames are used in wireless networks while packets are used in wired networks
D. Packets contain user data while frames only contain control information
Correct — B. A frame operates at Layer 2 (Data Link) and includes MAC addresses, while a packet operates at Layer 3 (Network) and contains IP addresses. Frames encapsulate packets when data moves down the protocol stack.
CCST Cisco IT Exam Prep What occurs during the encapsulation process in networking?
A. Headers are added to data as it travels down the protocol stack ✓
B. Data is compressed to save bandwidth
C. Checksums are verified to ensure data integrity
D. Data is encrypted for secure transmission
Correct — A. Encapsulation is the process where data traveling down the protocol stack has headers (and sometimes trailers) added at each layer. Each layer adds its own control information to help the corresponding layer on the receiving end.
CCST Cisco IT Exam Prep Which of the following correctly lists the layers of the TCP/IP model from highest to lowest?
A. Application, Internet, Transport, Network Access
B. Application, Session, Transport, Internet, Network Access
C. Application, Transport, Network, Data Link, Physical
D. Application, Transport, Internet, Network Access ✓
Correct — D. The TCP/IP model consists of four layers: Application at the top, then Transport, Internet, and Network Access at the bottom. This order represents the flow of data from applications down to the physical network.
CCST Cisco IT Exam Prep What is the primary function of the Data Link layer in the OSI model?
A. Converting bits into signals for transmission across the physical media
B. End-to-end data delivery and flow control
C. Node-to-node data delivery and media access control ✓
D. Logical addressing and determining the best path for data delivery
Correct — C. The Data Link layer (Layer 2) is responsible for node-to-node delivery of data, providing framing, physical addressing (MAC addresses), error detection, and access to the media.
CCST Cisco IT Exam Prep Which addressing method uses 48-bit addresses and operates at the Data Link layer?
A. Socket addressing
B. MAC addressing ✓
C. IP addressing
D. Port addressing
Correct — B. MAC (Media Access Control) addressing uses 48-bit (6-byte) addresses that are typically expressed in hexadecimal format and operates at Layer 2 (Data Link layer) of the OSI model.
CCST Cisco IT Exam Prep What is the purpose of the ARP protocol in networking?
A. To map IP addresses to MAC addresses ✓
B. To assign IP addresses dynamically to network devices
C. To resolve domain names to IP addresses
D. To route packets between different networks
Correct — A. Address Resolution Protocol (ARP) resolves IP addresses to MAC addresses. When a device needs to communicate with another device on the local network, it uses ARP to discover the MAC address associated with the target IP address.
CCST Cisco IT Exam Prep Which of the following address types is used to send data to all devices on a local network?
A. Unicast address
B. Multicast address
C. Anycast address
D. Broadcast address ✓
Correct — D. A broadcast address is used to deliver packets to all devices on a local network segment. In IPv4, the broadcast address typically ends with all 1s in the host portion of the address.
CCST Cisco IT Exam Prep Which layer of the OSI model is responsible for establishing, maintaining, and terminating sessions between applications?
A. Presentation Layer (Layer 6)
B. Application Layer (Layer 7)
C. Session Layer (Layer 5) ✓
D. Transport Layer (Layer 4)
Correct — C. The Session layer (Layer 5) manages communication sessions between applications, including establishing, maintaining, and terminating these connections. It also provides dialog control and synchronization.
About the CCST Cisco IT Exam Prep test
CCST Cisco IT Exam Prep candidates are tested on IT & Cybersecurity and Common Network Applications And Protocols, in the same format the real exam uses. Every question here comes with a plain-language explanation, so you learn why an answer is right instead of memorising it — with 30 questions to start on.
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- The core topics and terminology you'll be tested on
- Rules, standards and best-practice procedures
- Real-world scenarios and how to respond
- Common mistakes and how to avoid them
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Topics in this question bank
The core topics and terminology you'll be tested on
Rules, standards and best-practice procedures
Real-world scenarios and how to respond
Common mistakes and how to avoid them
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