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Security in SNMPv3 is provided using _______ and _______ of data packets over the network.
a. integration, authentication
b. encryption, decryption
c. authentication, encryption
d. synchronization, desynchronization
Answer: c. authentication, encryptionsanfoundry
SNMPv3 is an internet management standard defined by ________.
a. IETF
b. IEEE
c. ISO
d. ITU-T
Answer: a. IETFsanfoundry
Which protocol is primarily used for managing network devices in SNMP framework?
a. IMAP
b. SMTP
c. UDP
d. TCP/IP
Answer: c. UDPsanfoundry
SNMPv3 provides which of the following security features not available in SNMPv1 or SNMPv2c?
a. Message encryption and source validation
b. Community-based security
c. Bulk retrieval of MIB information
d. SNMP trap mechanism
Answer: a. Message encryption and source validationitexamanswers
What is the authentication protocol used by SNMPv3’s User Security Model (USM)?
a. HMAC-MD5
b. HMAC-SHA
c. Both HMAC-MD5 and HMAC-SHA
d. None of these
Answer: c. Both HMAC-MD5 and HMAC-SHAsanfoundry+1
Which encryption algorithms are supported by SNMPv3 for privacy (encryption)?
a. DES, AES, Triple DES
b. RSA, AES
c. MD5, SHA
d. None
Answer: a. DES, AES, Triple DESjuniper
What does SNMPv3’s View-Based Access Control Model (VACM) define?
a. Authentication protocols
b. User groups and access rights for data
c. Encryption algorithms
d. Device discovery protocols
Answer: b. User groups and access rights for dataautomationcommunity+1
In SNMPv3, what type of SNMP engine is responsible for the accuracy of timestamps and unique SNMP engine IDs?
a. Administrative
b. Informative
c. Authoritative
d. Non-authoritative
Answer: c. Authoritativesanfoundry
SNMPv3 provides protection against which security threat by verifying the identity of the sender?
a. Masquerade
b. Denial of Service
c. Eavesdropping
d. Modification of message
Answer: a. Masqueradesanfoundry
For SNMPv3 privacy, the DES key length is:
a. 128 bits
b. 56 bits
c. 64 bits
d. 256 bits
Answer: b. 56 bitssanfoundry
What is the default transport protocol used by SNMPv3 for communication?
a. TCP
b. UDP
c. ICMP
d. FTP
Answer: b. UDPsanfoundry
Which SNMPv3 component is responsible for the enforcement of access control?
a. Dispatcher subsystem
b. Message processing subsystem
c. Security and access control subsystem
d. Transport layer
Answer: c. Security and access control subsystemsanfoundry
SNMPv3 enhances security over previous versions by using:
a. Community Strings
b. Encryption and authentication
c. Bulk Transfer
d. Open text passwords
Answer: b. Encryption and authenticationitexamanswers+1
Which of the following is NOT a security model in SNMPv3?
a. User-Based Security Model (USM)
b. View-Based Access Control Model (VACM)
c. Transport Security Model (TSM)
d. Kerberos Security Model
Answer: d. Kerberos Security Modelautomationcommunity
What kind of attacks does the SNMPv3 authentication feature primarily protect against?
a. Eavesdropping
b. Message tampering and masquerade
c. Denial of service
d. Replay attacks
Answer: b. Message tampering and masqueradeautomationcommunity+1
Which Secure Hash Algorithm is commonly used for authentication in SNMPv3?
a. SHA-1
b. SHA-256
c. MD5
d. Both a and c
Answer: d. Both a and c (SHA-1 and MD5)juniper+1
SNMPv3’s encryption is dependent on the prior successful configuration of:
a. Authentication
b. Authorization
c. Community strings
d. IPsec tunnels
Answer: a. Authenticationjuniper
What are the three possible security levels defined in SNMPv3?
a. NoAuthNoPriv, AuthNoPriv, AuthPriv
b. NoAccess, ReadOnly, WriteOnly
c. Low, Medium, High
d. Read, Write, Execute
Answer: a. NoAuthNoPriv, AuthNoPriv, AuthPrivautomationcommunity
In SNMPv3, the Access Control subsystem provides:
a. Encryption service
b. Authentication service
c. Authorization service
d. Time synchronization
Answer: c. Authorization servicesanfoundry
The main function of the SNMPv3 dispatcher subsystem is to:
a. Manage user accounts
b. Handle and route SNMP messages internally
c. Encrypt messages
d. Authenticate users
Answer: b. Handle and route SNMP messages internallysanfoundry
Which is the recommended encryption algorithm for SNMPv3 due to its strength?
a. DES
b. AES
c. 3DES
d. RSA
Answer: b. AESjuniper
How does SNMPv3 ensure message integrity?
a. Through checksums
b. Using cryptographic hashes (HMAC)
c. Using symmetric encryption
d. Through IP filtering
Answer: b. Using cryptographic hashes (HMAC)sanfoundry+1
Which SNMPv3 security feature helps prevent unauthorized data modification?
a. Encryption
b. Hash-based authentication
c. Open text passwords
d. Anonymous access
Answer: b. Hash-based authenticationsanfoundry
What protocol does SNMPv3 use for secure user authentication?
a. Kerberos
b. HMAC-MD5 or HMAC-SHA
c. SSL/TLS
d. OAuth
Answer: b. HMAC-MD5 or HMAC-SHAsanfoundry
The “noAuthNoPriv” security level in SNMPv3 means:
a. No authentication, no encryption
b. Full authentication and encryption
c. Authentication only
d. Encryption only
Answer: a. No authentication, no encryptionautomationcommunity
How does SNMPv3 protect against replay attacks?
a. By using timestamps and unique message IDs
b. Using static community strings
c. Through simple authentication
d. By ignoring duplicate packets
Answer: a. By using timestamps and unique message IDssanfoundry
Which of the following is true about SNMPv3 users?
a. Users can be configured with different security levels and access rights
b. Users have no control over access to device data
c. All users have the same privileges
d. Users cannot be authenticated individually
Answer: a. Users can be configured with different security levels and access rightsautomationcommunity
An SNMPv3 agent that processes messages for multiple SNMP versions uses:
a. A single dispatcher and multiple engines
b. Multiple dispatchers, each handling one SNMP version
c. No dispatcher
d. Separate network interfaces
Answer: a. A single dispatcher and multiple enginessanfoundry
In SNMPv3, which security model is responsible for defining how users access specific MIB views?
a. User-Based Security Model (USM)
b. View-Based Access Control Model (VACM)
c. Transport Security Model (TSM)
d. Network Security Model (NSM)
Answer: b. View-Based Access Control Model (VACM)automationcommunity+1
What type of cryptographic key derivation is recommended in SNMPv3?
a. Password-based key derivation using HMAC-SHA or HMAC-MD5
b. Random key generation only
c. Public key cryptography only
d. No key derivation
Answer: a. Password-based key derivation using HMAC-SHA or HMAC-MD5sanfoundry
The recommended minimum key length for SNMPv3 AES encryption is:
a. 56 bits
b. 128 bits
c. 256 bits
d. 64 bits
Answer: b. 128 bitsjuniper
What is the impact of using SNMPv3 over SNMPv2c in terms of security?
a. Provides authentication and encryption
b. Uses community strings for security
c. Allows unauthenticated access
d. No security improvements
Answer: a. Provides authentication and encryptionitexamanswers
Which command is used to create an SNMPv3 user with authentication and encryption?
a. snmp-server user [name] [group] v3 auth sha [password] priv des56 [priv-password]
b. snmp-server community [name] RW
c. snmp-server enable traps
d. snmp-server host
Answer: a. snmp-server user [name] [group] v3 auth sha [password] priv des56 [priv-password]cbtnuggets
What is the purpose of the SNMPv3-time stamp?
a. Synchronize device time only
b. Help prevent replay attacks and confirm message freshness
c. Encrypt data
d. Identify user
Answer: b. Help prevent replay attacks and confirm message freshnesssanfoundry
What part of SNMPv3 architecture provides message processing?
a. Dispatcher subsystem
b. Message processing subsystem
c. Security subsystem
d. Data link layer
Answer: b. Message processing subsystemsanfoundry
Which one of the following is a possible SNMPv3 message format?
a. GetRequest, GetNextRequest, SetRequest, Trap
b. NTP, SNTP, DNS
c. FTP, HTTP, HTTPS
d. TCP, UDP, ICMP
Answer: a. GetRequest, GetNextRequest, SetRequest, Trapsanfoundry
In the context of SNMPv3, VACM stands for:
a. View Access Control Model
b. View-Based Access Control Model
c. Virtual Access Control Mechanism
d. Virtual Address Control Model
Answer: b. View-Based Access Control Modelsanfoundry
What is the role of the SNMPv3 local engine ID?
a. Uniquely identifies an SNMP engine in a network for secure communication
b. Stores user passwords
c. Encrypts data
d. Controls access rights
Answer: a. Uniquely identifies an SNMP engine in a network for secure communicationsanfoundry
Which of the following attacks is SNMPv3 designed to mitigate?
a. Unauthorized data access
b. Replay attacks
c. Data tampering
d. All of the above
Answer: d. All of the abovesanfoundry
What happens if an SNMPv3 message fails authentication?
a. Message is discarded and an error is logged
b. Message is processed partially
c. Message is forwarded without checks
d. No action is taken
Answer: a. Message is discarded and an error is loggedautomationcommunity
Which of the following is NOT a feature of SNMPv3?
a. Secure communication through security models
b. Authentication and privacy
c. Bulk data retrieval with no security
d. Remote configuration of security parameters
Answer: c. Bulk data retrieval with no securitysanfoundry
SNMPv3 supports configurable security levels for:
a. Individual users
b. Entire networks only
c. Device firmware
d. IP address filtering
Answer: a. Individual usersautomationcommunity
What is a “usmUser” in SNMPv3?
a. A security principal that has authentication and privacy settings
b. A community string
c. An IP address
d. A network device
Answer: a. A security principal that has authentication and privacy settingsautomationcommunity
What does the SNMPv3 privacy feature do?
a. Encrypts the PDU payloads to ensure confidentiality
b. Authenticates usernames only
c. Controls access to MIB objects
d. Sends traps
Answer: a. Encrypts the PDU payloads to ensure confidentialityautomationcommunity+1
The user-based security model (USM) in SNMPv3 provides:
a. Authentication, privacy, and message integrity
b. Public key infrastructure
c. IP filtering
d. VLAN segregation
Answer: a. Authentication, privacy, and message integrityautomationcommunity
What type of SNMPv3 communication is encrypted?
a. AuthPriv messages
b. NoAuthNoPriv messages
c. AuthNoPriv messages
d. All messages
Answer: a. AuthPriv messagesautomationcommunity
Which SNMPv3 feature helps to ensure the message has not been altered during transmission?
a. Message integrity through HMAC
b. Encryption only
c. User authentication only
d. SNMP traps
Answer: a. Message integrity through HMACsanfoundry
What is the primary benefit of SNMPv3 over SNMPv2c?
a. Enhanced security through authentication and encryption
b. Faster data retrieval
c. Use of community strings
d. No password required
Answer: a. Enhanced security through authentication and encryptionitexamanswers
What does the “priv” keyword specify in SNMPv3 user configuration?
a. Encryption (privacy) enablement
b. Authorization level
c. Read-only access
d. Authentication method
Answer: a. Encryption (privacy) enablementcbtnuggets
Who is responsible for defining the SNMPv3 standards and RFCs?
a. Internet Engineering Task Force (IETF)
b. Institute of Electrical and Electronics Engineers (IEEE)
c. International Organization for Standardization (ISO)
d. Internet Society (ISOC)
Answer: a. Internet Engineering Task Force (IETF)sanfoundry

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