Architect Study Guide review chapter 1

Question 1

You have been tasked with interviewing line-of-business owners about their needs for a new cloud application.

Which of the following do you expect to find?

• A A comprehensive list of defined business and technical requirements
• B That their business requirements do not have a one-to-one correlation with technical requirements
• C Business and technical requirements in conflict
• D Clear consensus on all requirements

Answer 1

B. The correct answer is B. Business requirements are high-level, business-oriented requirements that are rarely satisfied by meeting a single technical requirement. Option A is incorrect because business sponsors rarely have sufficient understanding of technical requirements in order to provide a comprehensive list. Option C is incorrect, because business requirements constrain technical options but should not be in conflict. Option D is incorrect because there is rarely a clear consensus on all requirements. Part of an architect’s job is to help stakeholders reach a consensus.

Question 2

You have been asked by stakeholders to suggest ways to reduce operational expenses as part of a cloud migration project. Which of the following would you recommend?

A Managed services, preemptible machines, access controls

B Managed services, preemptible machines, autoscaling

C NoSQL databases, preemptible machines, autoscaling

D NoSQL databases, preemptible machines, access controls

Answer 2

B

Question 3

Which Google service is for batch and stream processing?

Answer 3

Cloud Dataflow

Question 4

Which google service is good for analysis, preparation for machine learning?

Answer 4

Cloud Dataprep

Question 5

Which google managed service is googles managed hadoop and spark service?

Answer 5

Cloud Dataproc

Question 6

There are 5 types of network loadbalancers in GCP, what are they?

Answer 6

1. Network TCP/UDP
2. Internal TCP/UDP
3. HTTP(S)
4. SSL Proxy
5. TCP Proxy

Question 7

Name useful features of the Internal TCP/UDP load balancer

Answer 7

• Its a regional load balancer
• It is not proxied
• Good for Compute engine backends with private up address.
• Instances support TCP or UDP but not both

Question 8

Name useful features of the Network TCP/UDP load balancer?

Answer 8

1. It is non proxied
2. Only sends to servers within a region that its configured.
3. All traffic from the same connection are routed to the same instance.

Question 9

Name the three global load balancers?

Answer 9

1. HTTP(S)
2. SSL Proxy
3. TCP Proxy

All require premium tier network services

Question 10

Give more info on HTTPS load balancers?

Answer 10

1. Routes to target group based on capacity and health via an http proxy and url map
2. HTTPS requires ssl certificates on each of the backend instances.

Question 11

What are features of the SSL Proxy load balancer?

Answer 11

1. Terminates ssl traffic as the load balancer
2. Will deliver traffic to the closest region that has capacity.
3. Offloads ssl encryption/decryption for the backend instances

Question 12

Why would you use TCP proxy load balancing?

Answer 12

1. Lets you use a single IP address for all users and will route traffic to the closest instance.

Question 13

What speed does partner interconnect offer?

Answer 13

Between 50Mbps and 10 Gps

Question 14

What speed does Cloud VPN offer?

Answer 14

Cloud VPN provides up to 3 Gbps

Question 15

What speed does cloud Interconnect offer?

Answer 15

10 or 100 Gbps

Question 16

What protocol is used at layer 7

• IPSec
• TLS
• ALTS
• ARP

Answer 16

ALTS at layer 7, IPSec and TLS are used but not at layer 7 the application layer