CompTIA Cloud+ (CV0-003) Interview Questions
While some interviewers have their own style of questioning, most job interviews follow a standard set of questions and responses (including some of the most often-asked behavioral interview questions). Here are some of the most popular interview questions, as well as the best ways to respond to them. Let’s get started right now with some expert suggestions on how to prepare for the CompTIA Cloud+ (CV0-003) Interview:
1.What is the definition of cryptography?
Cryptography is the practice and study of ways for securing information and communication, with the goal of protecting data from third parties who aren’t supposed to have access to it.
2. What is the difference between an intrusion detection system (IDS) and an intrusion prevention system (IPS) in CompTIA Cloud+ (CV0-003)?
IDS stands for Intrusion Detection System, and it merely detects intrusions, leaving the administrator to deal with the prevention. In contrast, in an IPS, or Intrusion Prevention System, the system detects the intrusion and takes action to prevent it.
3. What is the difference between encryption and hashing?
To turn readable data into an unreadable format, both encryption and hashing are utilize. The distinction is that encrypted data can be decrypted and convert back to original data, whereas hashed data cannot be decrypted and convert back to original data.
4. What is the difference between VA and PT (Vulnerability Assessment)?
The process of identifying faults in a target is known as vulnerability assessment. The organisation recognises that their system/network has defects or vulnerabilities and wishes to identify and prioritise these flaws for correction.
The process of detecting vulnerabilities on a target is known as penetration testing. In this situation, the business would have put in place all of the security measures they could think of and would want to see if their system/network could be hack in any other way.
5. What is the meaning of a three-way handshake in CompTIA Cloud+ (CV0-003)?
A three-way handshake is a method for establishing a connection between a host and a client in a TCP/IP network. The client and server exchange packets in three steps, which is why it’s called a three-way handshake. The following are the three steps:
The client sends a SYN(Synchronize) message to the server to see if it is up and running, and if it has any open ports.
If the server has open ports, it sends a SYN-ACK message to the client.
The client acknowledges this by sending the server an ACK(Acknowledgement) packet.
6. What is the distinction between HIDS and NIDS in CompTIA Cloud+ (CV0-003)?
Both HIDS (Host IDS) and NIDS (Network IDS) are Intrusion Detection Systems that have the same goal of detecting intrusions. The only distinction is that HIDS is configure on a specific host or device. It keeps track of a device’s traffic as well as questionable system activity. NIDS, on the other hand, is a networked system. It keeps track of all network devices’ traffic.
7. What exactly is a traceroute? What is the purpose of it?
Traceroute is a utility that displays a packet’s journey. It lists all of the locations (mostly routers) through which the packet goes. This is typically use when a packet fails to reach its intended destination. To find the point of failure, use Traceroute to see where the connection stops or breaks.
8. Which protocol would be used to automatically assign IP addresses in CompTIA Cloud+ (CV0-003)?
A network administration technology called DHCP (Dynamic Host Configuration Protocol) assigns IP addresses to computers, servers, and printers. APIPA (Automatic Private IP Addressing) offers IP addresses for internal communication when our device cannot find a DHCP server.
9. What exactly is a Subnet Mask?
The Network address and the host address are separated by the Subnet Mask from an IP address. A 32-bit address is used as the subnet mask.
10. What is a virtual private network, or VPN?
When accessing public networks, a VPN (Virtual Private Network) is used to create a secure network connection. A virtual private network (VPN) encrypts your network traffic and hides your true identity on the internet by routing it through a virtual tunnel. It’s more difficult to track your online behaviour when you use a VPN.
11. What are the many ways to secure a computer network?
This can be done in a variety of ways. Install a trustworthy and up-to-date anti-virus programme on all computers. Ensure that firewalls are properly configured and set up. User authentication will be quite useful as well. When all of these variables are combined, the outcome is a network that is extremely secure.
12. What are the OSI model’s many layers?
A reference model for how apps communicate over a network is the OSI model. An OSI reference is a set of guidelines for vendors and developers to follow in order for digital communication goods and software applications to work together.
13. In a network, what do you mean by risk, vulnerability, and threat?
- A threat is someone who has the ability to cause harm to a system or an organisation.
- Vulnerability: A vulnerability in a system that could be exploite by a hacker
- When a danger exploits a vulnerability, there is a risk of loss or damage.
14. What are the differences between black hat, white hat, and grey hat hackers?
Hackers known as black hats are note for their extensive understanding on how to break into computer networks. They have the ability to create malware that can be use to break into these systems. This type of hacker takes advantage of their abilities to steal data or to utilize the stolen system for malevolent purposes.
15. How often should patch management be performed?
Patch management should begin as soon as the patch is available. When a patch for Windows is release, it should be applied to all machines within one month. The same is true for network devices; apply the patch as soon as it is available. Patch management should be done correctly.
16. How would you reset a BIOS setup that is password-protected?
BIOS has its own storage mechanism for settings and preferences because it is a pre-boot system. An easy approach to reset is to remove the CMOS battery, which causes the memory that stores the settings to lose power and, as a result, lose its setting.
17. What is a MITM attack and how can it be avoided?
A MITM (Man-in-the-Middle) attack occurs when a hacker inserts himself between two parties’ communications in order to collect information. Assume there is communication between two parties A and B. The hacker then joins the conversation. In front of A, he impersonates party B, and in front of B, he impersonates party A. Both parties’ data is transmit to the hacker, who then redirects it to the destination party after stealing the necessary information. While both parties believe they are conversing with one another, they are actually communicating with the hacker.
18. What is an XSS attack?
XSS (Cross-Site Scripting) is a type of cyberattack in which hackers inject harmful client-side scripts into websites. XSS can be use to steal cookies, hijack sessions, change the DOM, execute remote code, and crash the server, among other things.
The following practises can help you avoid XSS attacks:
- Validate user inputs
- Sanitize user inputs
- Encode special characters
- Use Anti-XSS services/tools
- Use XSS HTML Filter
19. What exactly is an ARP and how does it function?
The Address Resolution Mechanism (ARP) is a protocol for mapping an Internet Protocol address (IP address) to a local network-recognized physical machine address.
When an incoming packet designated for a host machine on a specific local area network arrives at a gateway, it instructs the ARP programme to look for a physical host or MAC address that matches the IP address.
The ARP program searches the ARP cache for the address and provides it if it is found so that the packet can be transform to the correct packet length and format before being sent to the machine.
20.In a LAN, what is port blocking?
Port blocking is the process of preventing users from accessing a set of services on a local area network. Stopping the source from using ports to communicate with the destination node. Since the programme uses ports, ports are restrict to limit access, closing security gaps in the network infrastructure.
21. What is two-factor authentication (two-factor authentication) and how may it be use on public websites?
“Multi-factor authentication” is an additional layer of protection. Not only does it require a password and username, but it also necessitates something that only that user has on them, such as a piece of information that only they should know or have on hand – such as a physical token. Authenticator apps eliminate the requirement for a verification code to be sent via text, voice, or email.
22. What is the definition of a botnet?
A botnet is a collection of machines link to the internet, each of which runs one or more bots. Bots and malicious programs were utilize to hack a victim’s device. Botnets can be use to steal data, send spam, and launch a distribute denial-of-service attack.
23. What exactly are salted hashbrowns?
Salt is a set of random numbers. When a password system is correctly safeguard, it generates a hash value for the password, a random salt value, and then stores the combined result in its database. This provides protection against dictionary and known hash attacks.
24. What is SQL Injection?
SQL Injection (SQLi) is a code injection attack in which an attacker manipulates data being supplied to the server in order to execute malicious SQL queries on the database server of a web application, allowing them to access, change, and delete illegal data. This type of attack is commonly use to take control of database servers.
The following practises can help you avoid SQL Injection attacks:
- Prepare statements ahead of time.
- Use Pre-defined Procedures
- Verify the user’s input.
25. What is a MAC address, and what does it mean?
“Media Access Control” is the abbreviation for “Media Access Control.” A MAC address is a device’s unique address that allows it to be on a network. It’s also known as a machine’s physical address. Every device’s Network Interface Card (NIC) is assign with it. The MAC address has a length of 48 bits. The first three octets are known as OUI (Organizational Unique Identifier), while the last three octets are known as EUI (European Union Unique Identifier) (Extended Unique identifier).
26. What exactly is a Subnet Mask?
The Network address and the host address are separate by the Subnet Mask from an IP address. A 32-bit address is use as the subnet mask.
27. What are the benefits of having zero trust in CompTIA Cloud+ (CV0-003)?
Users must be authenticate and permit before they may access any applications or resources in a zero-trust architecture. External users must be validate before they can connect, and all internal traffic is encrypt. There are no boundaries when there is no trust, and there is no inherent trust when there is no trust. While plainly more limiting, the zero-trust design has the advantage of creating a significantly more secure environment that safeguards critical data and digital assets from illegal access.
28. Can you explain how zero-trust security differs from traditional security methods?
From any conceivable device to the cloud, Zero Trust focuses on guaranteeing security across the enterprise. It’s a quick response to new remote access threats, and it guards against attacks like the ones that hit Sony and Target. Zero Trust is a fundamental shift in security approach, focusing on robust authentication standards and identity-aware IT platforms.
29. What are the benefits of network security monitoring?
Every organization’s network security monitoring is essential protection. Organizations that neglect to monitor their networks may go months without realizing they’ve been hack. In the event of an incident, network monitoring helps you to significantly reduce your response time, limiting the amount of damage done.
30. Can you tell me the first rule of digital forensics in CompTIA Cloud+ (CV0-003)?
When it comes to computers, extra vigilance is require because turning them on or off, installing new applications, and opening files can all alter or damage the original evidence. Examining computers for the purposes of a criminal investigation should only be done by a computer forensic examiner.
