PCCET Online Practice Questions and Answers

Correct Answer:

Correct Answer:

Benign: Safe and does not exhibit malicious behavior Grayware: No security risk but might display obtrusive behavior (for example, adware, spyware, and browser helper objects)

Malware: Malicious in nature and intent and can pose a security threat (for example, viruses, worms, trojans, root kits, botnets, and remote-access toolkits) Phishing: Malicious attempt to trick the recipient into revealing sensitive data

Correct Answer:

The basic DNS record types are as follows: A (IPv4) or AAAA (IPv6) (Address): Maps a domain or subdomain to an IP address or multiple IP addresses CNAME (Canonical Name): Maps a domain or subdomain to another hostname MX (Mail Exchanger): Specifies the hostname or hostnames of email servers for a domain PTR (Pointer): Points to a CNAME; commonly used for reverse DNS lookups that map an IP address to a host in a domain or subdomain SOA (Start of Authority): Specifies authoritative information about a DNS zone such as primary name server, email address of the domain administrator, and domain serial number NS (Name Server): The NS record specifies aan authoritative name server for a given host. TXT (Text): Stores text-based information

Correct Answer: A

SOAR tools ingest aggregated alerts from detection sources (such as SIEMs, network security tools, and mailboxes) before executing automatable, process- driven playbooks to enrich and respond to these alerts. https:// www.paloaltonetworks.com/cortex/security-operations-automation

Correct Answer: D

Correct Answer: C

Command and Control: Attackers establish encrypted communication channels back to command-and- control (C2) servers across the internet so that they can modify their attack objectives and methods as additional targets of opportunity are identified within the victim network, or to evade any new security countermeasures that the organization may attempt to deploy if attack artifacts are discovered.

Correct Answer: B

Correct Answer: D

Attack communication traffic is usually hidden with various techniques and tools, including: Encryption with SSL, SSH (Secure Shell), or some other custom or proprietary encryption Circumvention via proxies, remote access tools, or tunneling. In some instances, use of cellular networks enables complete circumvention of the target network for attack C2 traffic. Port evasion using network anonymizers or port hopping to traverse over any available open ports Fast Flux (or Dynamic DNS) to proxy through multiple infected endpoints or multiple, ever-changing C2 servers to reroute traffic and make determination of the true destination or attack source difficult DNS tunneling is used for C2 communications and data infiltration

Correct Answer: D

DevOps is not:

A combination of the Dev and Ops teams: There still are two teams; they just operate in a communicative, collaborative way.

Its own separate team: There is no such thing as a "DevOps engineer." Although some companies may appoint a "DevOps team" as a pilot when trying to transition to a DevOps culture, DevOps refers to a culture where developers, testers,

and operations personnel cooperate throughout the entire software delivery lifecycle. A tool or set of tools: Although there are tools that work well with a DevOps model or help promote DevOps culture, DevOps ultimately is a strategy, not a

tool. Automation: Although automation is very important for a DevOps culture, it alone does not define DevOps.

Correct Answer: C

2G/2.5G: 2G connectivity remains a prevalent and viable IoT connectivity option due to the low cost of 2G modules, relatively long battery life, and large installed base of 2G sensors and M2M applications.

3G: IoT devices with 3G modules use either Wideband Code Division Multiple Access (W-CDMA) or Evolved High Speed Packet Access (HSPA+ and Advanced HSPA+) to achieve data transfer rates of 384Kbps to 168Mbps. 4G/Long-Term

Evolution (LTE): 4G/LTE networks enable real-time IoT use cases, such as autonomous vehicles, with 4G LTE Advanced Pro delivering speeds in excess of 3Gbps and less than 2 milliseconds of latency.

5G: 5G cellular technology provides significant enhancements compared to 4G/LTE networks and is backed by ultra-low latency, massive connectivity and scalability for IoT devices, more efficient use of the licensed spectrum, and network

slicing for application traffic prioritization.