Upload questions.csv
Browse files- questions.csv +41 -40
questions.csv
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@@ -1,3 +1,4 @@
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| 1 |
"Which of these features does Cilium provide?
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| 2 |
**Select all answers that apply.**
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| 3 |
- a. Network policy enforcement
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@@ -8,231 +9,231 @@
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| 8 |
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| 9 |
- a. Hubble
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| 10 |
- b. Hobble
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| 11 |
-
- c. Grafana",
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| 12 |
"Which of these are characteristics of eBPF?
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| 13 |
- a. It allows dynamic changes to the kernel
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| 14 |
- b. It can be used to drop network packets that are forbidden by the network policy
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| 15 |
-
- c. It enables high-performance networking with security and observability built-in",
|
| 16 |
"What are the different tools for installing Cilium components into a Kubernetes cluster?
|
| 17 |
**Select all that apply.**
|
| 18 |
|
| 19 |
- a. Helm
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| 20 |
- b. The Cilium CLI
|
| 21 |
-
- c. Curl",
|
| 22 |
"A Cilium agent runs on every node in a Kubernetes cluster.
|
| 23 |
|
| 24 |
**True/False**
|
| 25 |
|
| 26 |
- a. True
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| 27 |
-
- b. False",
|
| 28 |
"How many instances of the Hubble Relay run on each cluster?
|
| 29 |
|
| 30 |
- a. One per node
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| 31 |
- b. One per pod
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| 32 |
-
- c. One per cluster",
|
| 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",
|
| 38 |
"Which network policy resource type does Cilium support?
|
| 39 |
|
| 40 |
- a. Standard Kubernetes NetworkPolicy
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| 41 |
- b. CiliumNetworkPolicy
|
| 42 |
- c. CiliumClusterNetworkPolicy
|
| 43 |
-
- d. All of the above",
|
| 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",
|
| 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",
|
| 56 |
"Hubble flows include packet dumps.
|
| 57 |
**True/False**
|
| 58 |
|
| 59 |
- a. True
|
| 60 |
-
- b. False"
|
| 61 |
"You can filter by packet verdict in the Hubble UI service map.
|
| 62 |
**True/False**
|
| 63 |
|
| 64 |
- a. True
|
| 65 |
-
- b. False",
|
| 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",
|
| 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",
|
| 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.",
|
| 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)",
|
| 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",
|
| 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",
|
| 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",
|
| 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.",
|
| 113 |
"Observability is a concept that is broader than traditional monitoring.
|
| 114 |
|
| 115 |
**True/False**
|
| 116 |
|
| 117 |
- a. True
|
| 118 |
-
- b. False",
|
| 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",
|
| 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",
|
| 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",
|
| 136 |
"Istio, Prometheus, Grafana, Jaeger, and Kiali are all open source projects.
|
| 137 |
|
| 138 |
**True/False**
|
| 139 |
|
| 140 |
- a. True
|
| 141 |
-
- b. False",
|
| 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",
|
| 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",
|
| 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",
|
| 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",
|
| 166 |
"Authorization is all about the principal.
|
| 167 |
|
| 168 |
**True/False**
|
| 169 |
|
| 170 |
- a. True
|
| 171 |
-
- b. False",
|
| 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",
|
| 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",
|
| 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",
|
| 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",
|
| 196 |
"We can apply the Envoy configuration patch only at the namespace level.
|
| 197 |
|
| 198 |
**True/False**
|
| 199 |
|
| 200 |
- a. True
|
| 201 |
-
- b. False",
|
| 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",
|
| 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",
|
| 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",
|
| 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",
|
| 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",
|
| 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",
|
| 238 |
|
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|
| 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?
|
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| 229 |
- a. Service communication within a single Kubernetes cluster
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| 230 |
- b. Communication between Istio control plane and services within one cluster
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| 231 |
- c. Communication between workloads in the cluster and VMs
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+
- d. Communication between workloads in the cluster and VMs, VM sidecars, and Istio’s control plane","Answer: d."
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"The process of deploying an Envoy proxy alongside each workload is called:
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| 235 |
- a. proxy bundling
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| 236 |
- b. sidecar injection
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| 237 |
- c. sidecar bundling
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| 238 |
+
- d. proxy injection","Answer: d."
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| 239 |
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