ISA-IEC-62443 Practice Questions

A.  

It is the lock on the door for networks and computer systems.

B.  

It is effective against all vulnerabilities in networks and computer systems.

C.  

It blocks malicious activity in networks and computer systems.

D.  

It detects attempts to break into or misuse a computer system.

A.  

A qualitative risk assessment method

B.  

A single protection factor for all FRs

C.  

The FR values for a specific zone's security level

D.  

The SL values for a specific zone's foundational requirements

A.  

Difficulty of installation

B.  

Need for constant updates

C.  

That they can only filter HTTP traffic

D.  

Deciding how they should be configured

A.  

Backup restoration

B.  

Password protection

C.  

Mutual authentication

D.  

Incident handling and response

A.  

Avoid using standards or frameworks to maintain flexibility.

B.  

Only perform qualitative assessments without quantitative measures.

C.  

Follow any documented methodology as long as it uses a consistent risk ranking scale.

D.  

Use different methodologies for initial and detailed assessments to cover more perspectives.

A.  

Level 4 systems must use the DMZ to communicate with Level 3 and below.

B.  

Level 0 can only interact with Level 1 through the firewall.

C.  

Internet access through the firewall is allowed.

D.  

Email is prevented, thereby mitigating the risk of phishing attempts.

A.  

General-purpose software firewall

B.  

Unidirectional gateway (data diode)

C.  

IACS-specific firewall with deep packet inspection

D.  

Basic packet filter firewall without protocol awareness

A.  

The IACS security priority is integrity.

B.  

The IT security priority is availability.

C.  

IACS cybersecurity must address safety issues.

D.  

Routers are not used in IACS networks.