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HashiCorp Vault-Associate Exam Syllabus Topics:
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NEW QUESTION # 25
You have been tasked with writing a policy that will allow read permissions for all secrets at path secret/bar. The users that are assigned this policy should also be able to list the secrets. What should this policy look like?
- A.
- B.
- C.
- D.
Answer: B
Explanation:
This policy would allow read permissions for all secrets at path secret/bar, as well as list permissions for the secret/bar/ path. The list permission is required to be able to see the names of the secrets under a given path1. The wildcard () character matches any number of characters within a single path segment, while the slash (/) character matches the end of the path2. Therefore, the policy would grant read access to any secret that starts with secret/bar/, such as secret/bar/foo or secret/bar/baz, but not to secret/bar itself. To grant list access to secret/bar, the policy needs to specify the exact path with a slash at the end. This policy follows the principle of least privilege, which means that it only grants the minimum permissions necessary for the users to perform their tasks3.
The other options are not correct because they either grant too much or too little permissions. Option A would grant both read and list permissions to all secrets under secret/bar, which is more than what is required. Option B would grant list permissions to all secrets under secret/bar, but only read permissions to secret/bar itself, which is not what is required. Option D would use an invalid character (+) in the policy, which would cause an error.
Reference:
Policy Syntax | Vault | HashiCorp Developer
Policy Syntax | Vault | HashiCorp Developer
Policies | Vault | HashiCorp Developer
NEW QUESTION # 26
When using Integrated Storage, which of the following should you do to recover from possible data loss?
- A. Use audit logs
- B. Use server logs
- C. Use snapshot
- D. Failover to a standby node
Answer: C
Explanation:
Integrated Storage is a Raft-based storage backend that allows Vault to store its data internally without relying on an external storage system. It also enables Vault to run in high availability mode with automatic leader election and failover. However, Integrated Storage is not immune to data loss or corruption due to hardware failures, network partitions, or human errors. Therefore, it is recommended to use the snapshot feature to backup and restore the Vault data periodically or on demand. A snapshot is a point-in-time capture of the entire Vault data, including the encrypted secrets, the configuration, and the metadata. Snapshots can be taken and restored using the vault operator raft snapshot command or the sys/storage/raft/snapshot API endpoint. Snapshots are encrypted and can only be restored with a quorum of unseal keys or recovery keys. Snapshots are also portable and can be used to migrate data between different Vault clusters or storage backends. Reference: https://developer.hashicorp.com/vault/docs/concepts/integrated-storage1, https://developer.hashicorp.com/vault/docs/commands/operator/raft/snapshot2, https://developer.hashicorp.com/vault/api-docs/system/storage/raft/snapshot3
NEW QUESTION # 27
Which of these are a benefit of using the Vault Agent?
- A. Vault Agent allows for centralized configuration of application secrets engines
- B. Vault Agent will enforce minimum levels of encryption an application can use
- C. Vault Agent will manage the lifecycle of cached tokens and leases automatically
- D. Vault Agent will auto-discover which authentication mechanism to use
Answer: C
Explanation:
Vault Agent is a client daemon that provides the following features:
Auto-Auth - Automatically authenticate to Vault and manage the token renewal process for locally-retrieved dynamic secrets.
API Proxy - Allows Vault Agent to act as a proxy for Vault's API, optionally using (or forcing the use of) the Auto-Auth token.
Caching - Allows client-side caching of responses containing newly created tokens and responses containing leased secrets generated off of these newly created tokens. The agent also manages the renewals of the cached tokens and leases.
Templating - Allows rendering of user-supplied templates by Vault Agent, using the token generated by the Auto-Auth step.
Process Supervisor Mode - Runs a child process with Vault secrets injected as environment variables.
One of the benefits of using the Vault Agent is that it will manage the lifecycle of cached tokens and leases automatically. This means that the agent will handle the token renewal and revocation logic, as well as the lease renewal and revocation logic for the secrets that are cached by the agent. This reduces the burden on the application developers and operators, and ensures that the tokens and secrets are always valid and up-to-date. Reference: Vault Agent | Vault | HashiCorp Developer, Caching - Vault Agent | Vault | HashiCorp Developer
NEW QUESTION # 28
Which Vault secret engine may be used to build your own internal certificate authority?
- A. Transit
- B. PKI
- C. Generic
- D. PostgreSQL
Answer: B
Explanation:
The Vault secret engine that can be used to build your own internal certificate authority is the PKI secret engine. The PKI secret engine generates dynamic X.509 certificates on-demand, without requiring manual processes of generating private keys and CSRs, submitting to a CA, and waiting for verification and signing. The PKI secret engine can act as a root CA or an intermediate CA, and can issue certificates for various purposes, such as TLS, code signing, email encryption, etc. The PKI secret engine can also manage the certificate lifecycle, such as rotation, revocation, renewal, and CRL generation. The PKI secret engine can also integrate with external CAs, such as Venafi or Entrust, to delegate the certificate issuance and management. Reference: PKI - Secrets Engines | Vault | HashiCorp Developer, Build Your Own Certificate Authority (CA) | Vault - HashiCorp Learn
NEW QUESTION # 29
What environment variable overrides the CLI's default Vault server address?
- A. VAULT_ADDR
- B. VAULT _HTTPS_ ADDRESS
- C. VAULT_ADDRESS
- D. VAULT_HTTP_ADORESS
Answer: D
Explanation:
The environment variable VAULT_ADDR overrides the CLI's default Vault server address. The VAULT_ADDR environment variable specifies the address of the Vault server that is used to communicate with Vault from other applications or processes. By setting this variable, you can avoid hard-coding the Vault server address in your code or configuration files, and you can also use different addresses for different environments or scenarios. For example, you can use a local development server for testing purposes, and a production server for deploying your application. Reference: Commands (CLI) | Vault | HashiCorp Developer, Vault Agent - secrets as environment variables | Vault | HashiCorp Developer
NEW QUESTION # 30
When an auth method is disabled all users authenticated via that method lose access.
- A. False
- B. True
Answer: B
Explanation:
The statement is true. When an auth method is disabled, all users authenticated via that method lose access. This is because the tokens issued by the auth method are automatically revoked when the auth method is disabled. This prevents the users from performing any operation in Vault using the revoked tokens. To regain access, the users have to authenticate again using a different auth method that is enabled and has the appropriate policies attached. Reference: Auth Methods | Vault | HashiCorp Developer, auth disable - Command | Vault | HashiCorp Developer
NEW QUESTION # 31
Your DevOps team would like to provision VMs in GCP via a CICD pipeline. They would like to integrate Vault to protect the credentials used by the tool. Which secrets engine would you recommend?
- A. Google Cloud Secrets Engine
- B. Identity secrets engine
- C. SSH secrets engine
- D. Key/Value secrets engine version 2
Answer: A
Explanation:
The Google Cloud Secrets Engine is the best option for the DevOps team to provision VMs in GCP via a CICD pipeline and integrate Vault to protect the credentials used by the tool. The Google Cloud Secrets Engine can dynamically generate GCP service account keys or OAuth tokens based on IAM policies, which can be used to authenticate and authorize the CICD tool to access GCP resources. The credentials are automatically revoked when they are no longer used or when the lease expires, ensuring that the credentials are short-lived and secure. The DevOps team can configure rolesets or static accounts in Vault to define the scope and permissions of the credentials, and use the Vault API or CLI to request credentials on demand. The Google Cloud Secrets Engine also supports generating access tokens for impersonated service accounts, which can be useful for delegating access to other service accounts without storing or managing their keys1.
The Identity Secrets Engine is not a good option for this use case, because it does not generate GCP credentials, but rather generates identity tokens that can be used to access other Vault secrets engines or namespaces2. The Key/Value Secrets Engine version 2 is also not a good option, because it does not generate dynamic credentials, but rather stores and manages static secrets that the user provides3. The SSH Secrets Engine is not a good option either, because it does not generate GCP credentials, but rather generates SSH keys or OTPs that can be used to access remote hosts via SSH4.
Reference:
Google Cloud - Secrets Engines | Vault | HashiCorp Developer
Identity - Secrets Engines | Vault | HashiCorp Developer
KV - Secrets Engines | Vault | HashiCorp Developer
SSH - Secrets Engines | Vault | HashiCorp Developer
NEW QUESTION # 32
When unsealing Vault, each Shamir unseal key should be entered:
- A. Sequentially from one system that all of the administrators are in front of
- B. While encrypted with each administrators PGP key
- C. By different administrators each connecting from different computers
- D. At the command line in one single command
Answer: C
Explanation:
When unsealing Vault, each Shamir unseal key should be entered by different administrators each connecting from different computers. This is because the Shamir unseal keys are split into shares that are distributed to trusted operators, and no single operator should have access to more than one share. This way, the unseal process requires the cooperation of a quorum of key holders, and enhances the security and availability of Vault. The unseal keys can be entered via multiple mechanisms from multiple client machines, and the process is stateful. The order of the keys does not matter, as long as the threshold number of keys is reached. The unseal keys should not be entered at the command line in one single command, as this would expose them to the history and compromise the security. The unseal keys should not be encrypted with each administrator's PGP key, as this would prevent Vault from decrypting them and reconstructing the master key. Reference: https://developer.hashicorp.com/vault/docs/concepts/seal3, https://developer.hashicorp.com/vault/docs/commands/operator/unseal
NEW QUESTION # 33
A web application uses Vault's transit secrets engine to encrypt data in-transit. If an attacker intercepts the data in transit which of the following statements are true? Choose two correct answers.
- A. You can rotate the encryption key so that the attacker won't be able to decrypt the data
- B. Even if the attacker was able to access the raw data, they would only have encrypted bits (TLS in transit)
- C. The keys can be rotated and min_decryption_version moved forward to ensure this data cannot be decrypted
- D. The Vault administrator would need to seal the Vault server immediately
Answer: B,C
Explanation:
A web application that uses Vault's transit secrets engine to encrypt data in-transit can benefit from the following security features:
Even if the attacker was able to access the raw data, they would only have encrypted bits (TLS in transit). This means that the attacker would need to obtain the encryption key from Vault in order to decrypt the data, which is protected by Vault's authentication and authorization mechanisms. The transit secrets engine does not store the data sent to it, so the attacker cannot access the data from Vault either.
The keys can be rotated and min_decryption_version moved forward to ensure this data cannot be decrypted. This means that the web application can periodically change the encryption key used to encrypt the data, and set a minimum decryption version for the key, which prevents older versions of the key from being used to decrypt the data. This way, even if the attacker somehow obtained an old version of the key, they would not be able to decrypt the data that was encrypted with a newer version of the key.
The other statements are not true, because:
You cannot rotate the encryption key so that the attacker won't be able to decrypt the data. Rotating the key alone does not prevent the attacker from decrypting the data, as they may still have access to the old version of the key that was used to encrypt the data. You need to also move the min_decryption_version forward to invalidate the old version of the key.
The Vault administrator would not need to seal the Vault server immediately. Sealing the Vault server would make it inaccessible to both the attacker and the legitimate users, and would require unsealing it with the unseal keys or the recovery keys. Sealing the Vault server is a last resort option in case of a severe compromise or emergency, and is not necessary in this scenario, as the attacker does not have access to the encryption key or the data in Vault. Reference: Transit - Secrets Engines | Vault | HashiCorp Developer, Encryption as a service: transit secrets engine | Vault | HashiCorp Developer
NEW QUESTION # 34
How would you describe the value of using the Vault transit secrets engine?
- A. Encryption for application data is best handled by a storage system or database engine, while storing encryption keys in Vault
- B. The transit secrets engine relieves the burden of proper encryption/decryption from application developers and pushes the burden onto the operators of Vault
- C. Vault has an API that can be programmatically consumed by applications
- D. The transit secrets engine ensures encryption in-transit and at-rest is enforced enterprise wide
Answer: B
Explanation:
The transit secrets engine relieves the burden of proper encryption/decryption from application developers and pushes the burden onto the operators of Vault. The transit secrets engine provides encryption as a service, which means that it performs cryptographic operations on data in-transit without storing any data. This allows developers to delegate the responsibility of managing encryption keys and algorithms to Vault operators, who can define and enforce policies on the transit secrets engine. This way, developers can focus on their application logic and data, while Vault handles the encryption and decryption of data in a secure and scalable manner. Reference: Transit - Secrets Engines | Vault | HashiCorp Developer, Encryption as a service: transit secrets engine | Vault | HashiCorp Developer
NEW QUESTION # 35
The key/value v2 secrets engine is enabled at secret/ See the following policy:
Which of the following operations are permitted by this policy? Choose two correct answers.
- A. vault kv list secret/super-secret
- B. vault kv get secret/webapp1
- C. vault kv put secret/webapp1 apikey-"ABCDEFGHI] K123M"
- D. vault kv delete secret/super-secret
- E. vault kv metadata get secret/webapp1
Answer: B,E
Explanation:
The policy shown in the image is:
path "secret/data/webapp1" { capabilities = ["create", "read", "update", "delete", "list"] } path "secret/data/super-secret" { capabilities = ["deny"] } This policy grants or denies access to the key/value v2 secrets engine mounted at secret/ according to the following rules:
The path "secret/data/webapp1" has the capabilities of "create", "read", "update", "delete", and "list". This means that the policy allows performing any of these operations on the secrets stored under this path. The data/ prefix is used to access the actual secret data in the key/value v2 secrets engine5. Therefore, the policy permits the operation of vault kv get secret/webapp1, which reads the secret data at secret/data/webapp16.
The path "secret/data/super-secret" has the capability of "deny". This means that the policy denies performing any operation on the secrets stored under this path. The policy overrides any other policy that might grant access to this path. Therefore, the policy does not permit the operations of vault kv delete secret/super-secret and vault kv list secret/super-secret, which delete and list the secret data at secret/data/super-secret respectively6.
The policy does not explicitly define any rules for the path "secret/metadata". The metadata/ prefix is used to access the metadata of the secrets in the key/value v2 secrets engine, such as the number of versions, the deletion status, the creation time, etc5. By default, if the policy grants any of the capabilities of "create", "read", "update", or "delete" on the data/ path, it also grants the same capabilities on the corresponding metadata/ path7. Therefore, the policy permits the operation of vault kv metadata get secret/webapp1, which reads the metadata of the secret at secret/metadata/webapp18.
NEW QUESTION # 36
You are using Vault's Transit secrets engine to encrypt your dat
a. You want to reduce the amount of content encrypted with a single key in case the key gets compromised. How would you do this?
- A. Upgrade to Vault Enterprise and integrate with HSM
- B. Periodically rotate the encryption key
- C. Periodically re-key the Vault's unseal keys
- D. Use 4096-bit RSA key to encrypt the data
Answer: B
Explanation:
The Transit secrets engine supports the rotation of encryption keys, which allows you to change the key that is used to encrypt new data without affecting the ability to decrypt data that was already encrypted. This reduces the amount of content encrypted with a single key in case the key gets compromised, and also helps you comply with the NIST guidelines for key rotation. You can rotate the encryption key manually by invoking the /transit/keys/<name>/rotate endpoint, or you can configure the key to automatically rotate based on a time interval or a number of encryption operations. When you rotate a key, Vault generates a new key version and increments the key's latest_version metadata. The new key version becomes the encryption key used for encrypting any new data. The previous key versions are still available for decrypting the existing data, unless you specify a minimum decryption version to archive the old key versions. You can also delete or disable old key versions if you want to revoke access to the data encrypted with those versions. Reference: https://developer.hashicorp.com/vault/docs/secrets/transit1, https://developer.hashicorp.com/vault/api-docs/secret/transit2
NEW QUESTION # 37
Which of the following statements describe the CLI command below?
S vault login -method-1dap username-mitche11h
- A. You will be prompted to enter the password
- B. By default the generated token is valid for 24 hours
- C. Fails because the password is not provided
- D. Generates a token which is response wrapped
Answer: D
Explanation:
The CLI command vault login -method ldap username=mitchellh generates a token that is response wrapped. This means that the token contains a base64-encoded response wrapper, which is a JSON object that contains information about the token, such as its policies, metadata, and expiration time. The response wrapper is used to verify the authenticity and integrity of the token, and to prevent replay attacks. The response wrapper also allows Vault to automatically renew the token when it expires, or to revoke it if it is compromised. The -method ldap option specifies that the authentication method is LDAP, which requires a username and password to be provided. The username mitchellh is an example of an LDAP user name, and the password will be hidden when entered. Reference: Vault CLI Reference | Vault | HashiCorp Developer, Vault CLI Reference | Vault | HashiCorp Developer
NEW QUESTION # 38
Use this screenshot to answer the question below:
Where on this page would you click to view a secret located at secret/my-secret?
- A. D
- B. A
- C. E
- D. C
- E. B
Answer: D
Explanation:
In the HashiCorp Vault UI, secrets are organized in a tree-like structure. To view a secret located at secret/my-secret, you would click on the "secret/" folder in the tree, then click on the "my-secret" file. In this screenshot, the "secret/" folder is located at option C. This folder contains the secrets that are stored in the key/value secrets engine, which is the default secrets engine in Vault. The key/value secrets engine allows you to store arbitrary secrets as key/value pairs. The key is the path of the secret, and the value is the data of the secret. For example, the secret located at secret/my-secret has a key of "my-secret" and a value of whatever data you stored there.
Reference:
[KV - Secrets Engines | Vault | HashiCorp Developer]
NEW QUESTION # 39
An authentication method should be selected for a use case based on:
- A. The auth method that best establishes the identity of the client
- B. The strongest available cryptographic hash for the use case
- C. The cloud provider for which the client is located on
- D. Compatibility with the secret engine which is to be used
Answer: A
Explanation:
An authentication method should be selected for a use case based on the auth method that best establishes the identity of the client. The identity of the client is the basis for assigning a set of policies and permissions to the client in Vault. Different auth methods have different ways of verifying the identity of the client, such as using passwords, tokens, certificates, cloud credentials, etc. Depending on the use case, some auth methods may be more suitable or convenient than others. For example, for human users, the userpass or ldap auth methods may be easy to use, while for machines or applications, the approle or aws auth methods may be more secure and scalable. The choice of the auth method should also consider the trade-offs between security, performance, and usability. Reference: Auth Methods | Vault | HashiCorp Developer, Authentication - Concepts | Vault | HashiCorp Developer
NEW QUESTION # 40
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