Linux Foundation ICA Certification Exam Sample Questions

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Linux Foundation ICA Sample Questions:

01. How can Istio's observability tools assist in troubleshooting?
a) By auto-correcting configuration errors
b) By providing detailed metrics and logs for analysis
c) By automatically scaling services based on traffic
d) By encrypting traffic data for security
 
02. In Istio, what advanced technique can be used to manage traffic for complex deployment patterns like canary releases?
a) Sidecar injection
b) Traffic mirroring
c) Weighted routing rules
d) Circuit breakers
 
03. What feature of Istio can be used to simulate network failures?
a) Fault injection
b) Traffic mirroring
c) Sidecar injection
d) Circuit breakers
 
04. In Istio, how does a DestinationRule enhance the functionality of a VirtualService?
a) By adding security protocols
b) By enabling service discovery
c) By providing detailed routing decisions
d) By defining policies applied to traffic after routing by VirtualService
 
05. How can a VirtualService be used in conjunction with a Gateway in Istio?
a) To redirect traffic to external services
b) To define detailed routing rules for traffic entering through a Gateway
c) To balance traffic load among internal services
d) To encrypt data passing through the Gateway
 
06. Which type of fault injection is used to simulate a service crash in Istio?
a) Traffic mirroring
b) HTTP delay
c) HTTP abort
d) Load balancing
 
07. What approach does Istio use to enable the integration of legacy systems into the service mesh?
a) Re-writing legacy systems to be Kubernetes-compatible
b) Encapsulating legacy systems in containers
c) Connecting legacy systems through a dedicated gateway
d) Using adapters to bridge legacy systems with the mesh
 
08. When applying fault injection in Istio, what is crucial to consider for maintaining service quality?
a) The location of the service nodes
b) The volume of network traffic
c) The scope and impact of the faults injected
d) The speed of service deployment
 
09. Which Istio feature allows you to control traffic flow between services within the mesh?
a) ServiceEntry
b) VirtualService
c) DestinationRule
d) Gateway
 
10. When updating Istio, what is the recommended way to ensure minimal downtime?
a) Update Istio during low traffic hours
b) Directly replace the old version
c) Use rolling updates
d) Pause all traffic before updating

Answers:

Question: 01
Answer: b		 Question: 02
Answer: c		 Question: 03
Answer: a		 Question: 04
Answer: d		 Question: 05
Answer: b
Question: 06
Answer: c		 Question: 07
Answer: d		 Question: 08
Answer: c		 Question: 09
Answer: b		 Question: 10
Answer: c

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