cwielenb commited on
Commit
a28c20d
·
verified ·
1 Parent(s): b809b77

Upload questions.csv

Browse files
Files changed (1) hide show
  1. questions.csv +41 -40
questions.csv CHANGED
@@ -1,3 +1,4 @@
 
1
  "Which of these features does Cilium provide?
2
  **Select all answers that apply.**
3
  - a. Network policy enforcement
@@ -8,231 +9,231 @@
8
 
9
  - a. Hubble
10
  - b. Hobble
11
- - c. Grafana", "Answer: a"
12
  "Which of these are characteristics of eBPF?
13
  - a. It allows dynamic changes to the kernel
14
  - b. It can be used to drop network packets that are forbidden by the network policy
15
- - c. It enables high-performance networking with security and observability built-in", "Answer: d"
16
  "What are the different tools for installing Cilium components into a Kubernetes cluster?
17
  **Select all that apply.**
18
 
19
  - a. Helm
20
  - b. The Cilium CLI
21
- - c. Curl", "Answer: a, b"
22
  "A Cilium agent runs on every node in a Kubernetes cluster. 
23
 
24
  **True/False**
25
 
26
  - a. True
27
- - b. False", "Answer: a"
28
  "How many instances of the Hubble Relay run on each cluster?
29
 
30
  - a. One per node
31
  - b. One per pod
32
- - c. One per cluster", "Answer: c"
33
  "What is the Cilium CLI command for checking that connectivity and policy enforcement is working correctly?
34
 
35
  - a. kubectl connectivity test
36
  - b. cilium connectivity test
37
- - c. cilium policy test", "Answer: b"
38
  "Which network policy resource type does Cilium support?
39
 
40
  - a. Standard Kubernetes NetworkPolicy
41
  - b. CiliumNetworkPolicy
42
  - c. CiliumClusterNetworkPolicy
43
- - d. All of the above", "Answer: d"
44
  "It’s possible to export Layer 3 network policy using the networkpolicy.io’s visual policy editor as CiliumNetworkPolicy YAML files. 
45
 
46
  **True/False**
47
 
48
  - a. True
49
- - b. False", "Answer: a"
50
  "Which of the following is a true statement? 
51
  **Select all that apply.**
52
 
53
  - a. The CiliumNetworkPolicy resource supports service name-based egress policy for internal cluster communications
54
  - b. The standard Kubernetes NetworkPolicy resource supports L7 HTTP protocol rules limiting access to specific HTTP paths
55
- - c. The CiliumNetworkPolicy resource supports both TCP and ICMP egress policy", "Answer: a"
56
  "Hubble flows include packet dumps. 
57
  **True/False**
58
 
59
  - a. True
60
- - b. False" , "Answer: b"
61
  "You can filter by packet verdict in the Hubble UI service map. 
62
  **True/False**
63
 
64
  - a. True
65
- - b. False", "Answer: a"
66
  "Which of the following statements are **TRUE**? 
67
  **Select all that apply.**
68
 
69
  - a. The Hubble Relay service provides cluster-wide network observability
70
  - b. It's not possible to filter flows by namespace using the Hubble CLI tool
71
  - c. Hubble flows include information about traffic direction
72
- - d. Hubble is optional and needs to be enabled when installing Cilium", "Answer: a, c, d"
73
  "After Istio is installed on a Kubernetes cluster, any workloads deployed to service mesh are automatically accompanied with sidecars.
74
 
75
  **True/False**
76
  a. True
77
- b. False", "Answer: b."
78
  "How is outbound traffic from a service routed to the sidecar?
79
 
80
  - a. Programmers must revise their code to specifically target the proxy at localhost:15000.
81
  - b. iptables rules within a Pod are applied to transparently effect this change.
82
- - c. Operators must use the istioctl rewire-pod command to transparently effect this change.", "Answer: b."
83
  "What identity framework does Istio base its application of workload identity?
84
 
85
  - a. Security Assertion Markup Language (SAML)
86
  - b. Open ID Connect (OIDC)
87
  - c. Secure Production Identity Framework for Everyone (SPIFFE)
88
- - d. JSON Web Tokens (JWT)", "Answer: c."
89
  "The Istio framework offers the choice between manually configuring Envoy sidecars and letting the Istio control plane manage Envoy.
90
 
91
  **True/False**
92
 
93
  - a. True
94
- - b. False", "Answer: b."
95
  "The _demo_ configuration profile installs only the Istio control plane and the ingress gateway.
96
 
97
  **True/False**
98
 
99
  - a. True
100
- - b. False", "Answer: b."
101
  "Helm installation consists of the following Helm charts:
102
 
103
  - a. base, istiod, gateway
104
  - b. istiod, ingress-gateway, egress-gateway
105
  - c. istiod, gateways
106
- - d. base, control-plane, gateway", "Answer: a."
107
  "In which section of the IstioOperator resource can we configure Kubernetes resource limits and requests:
108
 
109
  - a. global
110
  - b. meshConfig
111
  - c. components
112
- - d. We cannot configure limits and requests.", "Answer: c."
113
  "Observability is a concept that is broader than traditional monitoring.
114
 
115
  **True/False**
116
 
117
  - a. True
118
- - b. False", "Answer: a."
119
  "What are the three main components of modern observability?
120
 
121
  - a. Graphs, charts, and metrics
122
  - b. Logs, metrics, and traces
123
- - c. Logs, Garbage collection, and Threads", "Answer: b."
124
  "With Istio, developers must expose their metrics to Prometheus directly from inside their applications.
125
 
126
  **True/False**
127
 
128
  - a. True
129
- - b. False", "Answer: b."
130
  "Envoy sidecars can initiate and propagate B3 trace headers without any assistance from the running applications. 
131
 
132
  **True/False**
133
 
134
  - a. True
135
- - b. False", "Answer: b."
136
  "Istio, Prometheus, Grafana, Jaeger, and Kiali are all open source projects.
137
 
138
  **True/False**
139
 
140
  - a. True
141
- - b. False", "Answer: a."
142
  "The ingress and egress gateways in Istio are single instances of an Envoy proxy. 
143
 
144
  **True/False**
145
 
146
  - a. True
147
- - b. False", "Answer: a."
148
  "In which resource can we configure outlier detection and load balancer settings?
149
 
150
  - a. VirtualService
151
  - b. DestinationRule
152
  - c. Gateway
153
- - d. ServiceEntry", "Answer: b."
154
  "The traffic can be matched on multiple properties and to match the values, we can only use regular expressions.
155
 
156
  **True/False**
157
 
158
  - a. True
159
- - b. False", "Answer: b."
160
  "When Envoy retries a failed request, the endpoint that caused the retry is no longer in the load balancing pool. 
161
 
162
  **True/False**
163
 
164
  - a. True
165
- - b. False", "Answer: a."
166
  "Authorization is all about the principal. 
167
 
168
  **True/False**
169
 
170
  - a. True
171
- - b. False", "Answer: b."
172
  "Which one of the following resources can we use to configure mTLS for inbound traffic?
173
 
174
  - a. PeerAuthentication
175
  - b. DestinationRule
176
  - c. VirtualService
177
- - d. AuthorizationPolicy", "Answer: a."
178
  "What do Kubernetes pods use as their identity during runtime?
179
 
180
  - a. Kubernetes secrets
181
  - b. Service accounts
182
  - c. JWT tokens
183
- - d. Bearer tokens", "Answer: b."
184
  "The clusters section in the Envoy configuration defines how the traffic is sent to the upstream service. 
185
 
186
  **True/False**
187
 
188
  - a. True
189
- - b. False", "Answer: a."
190
  "Where in the Envoy configuration is the router filter defined?
191
 
192
  - a. Within the HTTP connection manager filter
193
  - b. Within the routes
194
  - c. Within the listener filter
195
- - d. Within the clusters", "Answer: a."
196
  "We can apply the Envoy configuration patch only at the namespace level. 
197
 
198
  **True/False**
199
 
200
  - a. True
201
- - b. False", "Answer: b."
202
  "When using the **oci://** scheme in the WasmPlugin resource, the Istio agent downloads compiled Wasm plugins from an OCI-compliant registry.
203
 
204
  **True/False**
205
 
206
  - a. True
207
- - b. False", "Answer: a."
208
  "By default, Istio watches all workloads in all namespaces and updates sidecar proxy configuration whenever new workloads are added, removed, or updated. 
209
 
210
  **True/False**
211
 
212
  - a. True
213
- - b. False", "Answer: a."
214
  "Which Istio resource can be used to provide the details about the namespace, labels, and service account to the VM workload?
215
 
216
  - a. WorkloadEntry
217
  - b. VirtualService
218
  - c. ServiceEntry
219
- - d. ServiceEntry", "Answer: a."
220
  "The primary cluster in the multi-cluster deployment scenario runs the control plane. 
221
 
222
  **True/False**
223
 
224
  - a. True
225
- - b. False", "Answer: a."
226
  "What is the east-west gateway used for?
227
 
228
  - a. Service communication within a single Kubernetes cluster
229
  - b. Communication between Istio control plane and services within one cluster
230
  - c. Communication between workloads in the cluster and VMs
231
- - d. Communication between workloads in the cluster and VMs, VM sidecars, and Istio’s control plane", "Answer: d."
232
  "The process of deploying an Envoy proxy alongside each workload is called:
233
 
234
  - a. proxy bundling
235
  - b. sidecar injection
236
  - c. sidecar bundling
237
- - d. proxy injection", "Answer: d."
238
 
 
1
+ Question, Answer
2
  "Which of these features does Cilium provide?
3
  **Select all answers that apply.**
4
  - a. Network policy enforcement
 
9
 
10
  - a. Hubble
11
  - b. Hobble
12
+ - c. Grafana","Answer: a"
13
  "Which of these are characteristics of eBPF?
14
  - a. It allows dynamic changes to the kernel
15
  - b. It can be used to drop network packets that are forbidden by the network policy
16
+ - c. It enables high-performance networking with security and observability built-in","Answer: d"
17
  "What are the different tools for installing Cilium components into a Kubernetes cluster?
18
  **Select all that apply.**
19
 
20
  - a. Helm
21
  - b. The Cilium CLI
22
+ - c. Curl","Answer: a, b"
23
  "A Cilium agent runs on every node in a Kubernetes cluster. 
24
 
25
  **True/False**
26
 
27
  - a. True
28
+ - b. False","Answer: a"
29
  "How many instances of the Hubble Relay run on each cluster?
30
 
31
  - a. One per node
32
  - b. One per pod
33
+ - c. One per cluster","Answer: c"
34
  "What is the Cilium CLI command for checking that connectivity and policy enforcement is working correctly?
35
 
36
  - a. kubectl connectivity test
37
  - b. cilium connectivity test
38
+ - c. cilium policy test","Answer: b"
39
  "Which network policy resource type does Cilium support?
40
 
41
  - a. Standard Kubernetes NetworkPolicy
42
  - b. CiliumNetworkPolicy
43
  - c. CiliumClusterNetworkPolicy
44
+ - d. All of the above","Answer: d"
45
  "It’s possible to export Layer 3 network policy using the networkpolicy.io’s visual policy editor as CiliumNetworkPolicy YAML files. 
46
 
47
  **True/False**
48
 
49
  - a. True
50
+ - b. False","Answer: a"
51
  "Which of the following is a true statement? 
52
  **Select all that apply.**
53
 
54
  - a. The CiliumNetworkPolicy resource supports service name-based egress policy for internal cluster communications
55
  - b. The standard Kubernetes NetworkPolicy resource supports L7 HTTP protocol rules limiting access to specific HTTP paths
56
+ - c. The CiliumNetworkPolicy resource supports both TCP and ICMP egress policy","Answer: a"
57
  "Hubble flows include packet dumps. 
58
  **True/False**
59
 
60
  - a. True
61
+ - b. False","Answer: b"
62
  "You can filter by packet verdict in the Hubble UI service map. 
63
  **True/False**
64
 
65
  - a. True
66
+ - b. False","Answer: a"
67
  "Which of the following statements are **TRUE**? 
68
  **Select all that apply.**
69
 
70
  - a. The Hubble Relay service provides cluster-wide network observability
71
  - b. It's not possible to filter flows by namespace using the Hubble CLI tool
72
  - c. Hubble flows include information about traffic direction
73
+ - d. Hubble is optional and needs to be enabled when installing Cilium","Answer: a, c, d"
74
  "After Istio is installed on a Kubernetes cluster, any workloads deployed to service mesh are automatically accompanied with sidecars.
75
 
76
  **True/False**
77
  a. True
78
+ b. False","Answer: b."
79
  "How is outbound traffic from a service routed to the sidecar?
80
 
81
  - a. Programmers must revise their code to specifically target the proxy at localhost:15000.
82
  - b. iptables rules within a Pod are applied to transparently effect this change.
83
+ - c. Operators must use the istioctl rewire-pod command to transparently effect this change.","Answer: b."
84
  "What identity framework does Istio base its application of workload identity?
85
 
86
  - a. Security Assertion Markup Language (SAML)
87
  - b. Open ID Connect (OIDC)
88
  - c. Secure Production Identity Framework for Everyone (SPIFFE)
89
+ - d. JSON Web Tokens (JWT)","Answer: c."
90
  "The Istio framework offers the choice between manually configuring Envoy sidecars and letting the Istio control plane manage Envoy.
91
 
92
  **True/False**
93
 
94
  - a. True
95
+ - b. False","Answer: b."
96
  "The _demo_ configuration profile installs only the Istio control plane and the ingress gateway.
97
 
98
  **True/False**
99
 
100
  - a. True
101
+ - b. False","Answer: b."
102
  "Helm installation consists of the following Helm charts:
103
 
104
  - a. base, istiod, gateway
105
  - b. istiod, ingress-gateway, egress-gateway
106
  - c. istiod, gateways
107
+ - d. base, control-plane, gateway","Answer: a."
108
  "In which section of the IstioOperator resource can we configure Kubernetes resource limits and requests:
109
 
110
  - a. global
111
  - b. meshConfig
112
  - c. components
113
+ - d. We cannot configure limits and requests.","Answer: c."
114
  "Observability is a concept that is broader than traditional monitoring.
115
 
116
  **True/False**
117
 
118
  - a. True
119
+ - b. False","Answer: a."
120
  "What are the three main components of modern observability?
121
 
122
  - a. Graphs, charts, and metrics
123
  - b. Logs, metrics, and traces
124
+ - c. Logs, Garbage collection, and Threads","Answer: b."
125
  "With Istio, developers must expose their metrics to Prometheus directly from inside their applications.
126
 
127
  **True/False**
128
 
129
  - a. True
130
+ - b. False","Answer: b."
131
  "Envoy sidecars can initiate and propagate B3 trace headers without any assistance from the running applications. 
132
 
133
  **True/False**
134
 
135
  - a. True
136
+ - b. False","Answer: b."
137
  "Istio, Prometheus, Grafana, Jaeger, and Kiali are all open source projects.
138
 
139
  **True/False**
140
 
141
  - a. True
142
+ - b. False","Answer: a."
143
  "The ingress and egress gateways in Istio are single instances of an Envoy proxy. 
144
 
145
  **True/False**
146
 
147
  - a. True
148
+ - b. False","Answer: a."
149
  "In which resource can we configure outlier detection and load balancer settings?
150
 
151
  - a. VirtualService
152
  - b. DestinationRule
153
  - c. Gateway
154
+ - d. ServiceEntry","Answer: b."
155
  "The traffic can be matched on multiple properties and to match the values, we can only use regular expressions.
156
 
157
  **True/False**
158
 
159
  - a. True
160
+ - b. False","Answer: b."
161
  "When Envoy retries a failed request, the endpoint that caused the retry is no longer in the load balancing pool. 
162
 
163
  **True/False**
164
 
165
  - a. True
166
+ - b. False","Answer: a."
167
  "Authorization is all about the principal. 
168
 
169
  **True/False**
170
 
171
  - a. True
172
+ - b. False","Answer: b."
173
  "Which one of the following resources can we use to configure mTLS for inbound traffic?
174
 
175
  - a. PeerAuthentication
176
  - b. DestinationRule
177
  - c. VirtualService
178
+ - d. AuthorizationPolicy","Answer: a."
179
  "What do Kubernetes pods use as their identity during runtime?
180
 
181
  - a. Kubernetes secrets
182
  - b. Service accounts
183
  - c. JWT tokens
184
+ - d. Bearer tokens","Answer: b."
185
  "The clusters section in the Envoy configuration defines how the traffic is sent to the upstream service. 
186
 
187
  **True/False**
188
 
189
  - a. True
190
+ - b. False","Answer: a."
191
  "Where in the Envoy configuration is the router filter defined?
192
 
193
  - a. Within the HTTP connection manager filter
194
  - b. Within the routes
195
  - c. Within the listener filter
196
+ - d. Within the clusters","Answer: a."
197
  "We can apply the Envoy configuration patch only at the namespace level. 
198
 
199
  **True/False**
200
 
201
  - a. True
202
+ - b. False","Answer: b."
203
  "When using the **oci://** scheme in the WasmPlugin resource, the Istio agent downloads compiled Wasm plugins from an OCI-compliant registry.
204
 
205
  **True/False**
206
 
207
  - a. True
208
+ - b. False","Answer: a."
209
  "By default, Istio watches all workloads in all namespaces and updates sidecar proxy configuration whenever new workloads are added, removed, or updated. 
210
 
211
  **True/False**
212
 
213
  - a. True
214
+ - b. False","Answer: a."
215
  "Which Istio resource can be used to provide the details about the namespace, labels, and service account to the VM workload?
216
 
217
  - a. WorkloadEntry
218
  - b. VirtualService
219
  - c. ServiceEntry
220
+ - d. ServiceEntry","Answer: a."
221
  "The primary cluster in the multi-cluster deployment scenario runs the control plane. 
222
 
223
  **True/False**
224
 
225
  - a. True
226
+ - b. False","Answer: a."
227
  "What is the east-west gateway used for?
228
 
229
  - a. Service communication within a single Kubernetes cluster
230
  - b. Communication between Istio control plane and services within one cluster
231
  - c. Communication between workloads in the cluster and VMs
232
+ - d. Communication between workloads in the cluster and VMs, VM sidecars, and Istio’s control plane","Answer: d."
233
  "The process of deploying an Envoy proxy alongside each workload is called:
234
 
235
  - a. proxy bundling
236
  - b. sidecar injection
237
  - c. sidecar bundling
238
+ - d. proxy injection","Answer: d."
239