When validating a certificate, what does checking the 'validity period' verify?

That the certificate is currently within its not-before and not-after dates

That the certificate's public key matches the private key

That the certificate was issued by a trusted CA

That the certificate has not been revoked by the CA

How does Online Certificate Status Protocol (OCSP) differ from a CRL?

OCSP provides real-time revocation status for a specific certificate

OCSP is used only for certificate enrollment, not validation

OCSP is a proprietary Junos protocol

OCSP lists all revoked certificates in a single file

In Junos, what is the purpose of a 'CA profile'?

To specify which certificates are revoked

To configure the IPsec VPN tunnel parameters

To store the CA's certificate and enrollment parameters

To define the local certificate and private key for the device

What is the role of the certificate in an IPsec VPN's IKE authentication process?

To encrypt the IKE negotiation traffic

To define the encryption algorithms for the IPsec tunnel

To authenticate the identity of the peer during IKE phase 1

To provide a shared secret for the IPsec SA

A security team is deciding between using CRL and OCSP for certificate revocation checking on their Junos VPN gateways. They have a large number of certificates and need to minimize the time between a certificate being revoked and it being rejected by the gateways. They also want to reduce the load on the CA. Which approach should they choose?

Use CRL with a short update interval.

Use OCSP for real-time revocation status.

Use both CRL and OCSP simultaneously.

Use CRL with a long update interval to reduce load.

Juniper NetworksCertified Professional, Security (JNCIP-SEC)

Domain 5Objective 2

Public Key Infrastructure (PKI) JN0-637 Practice Questions (Page 2)

Part of the Advanced IPsec VPNs domain, which makes up ~20% of our current practice bank. Juniper Networks does not publish an official question count, but from its 90-minute exam (~35–60 total, ~7–12 in this domain), expect 1–2 from this objective — we provide 19 practice questions to prepare you well beyond it. (estimate)

19questions here

4free pages

6concepts

Questions 6–10

6foundation · easy
When validating a certificate, what does checking the 'validity period' verify?
Select an answer first
7foundation · easy
How does Online Certificate Status Protocol (OCSP) differ from a CRL?
Select an answer first
8foundation · easy
In Junos, what is the purpose of a 'CA profile'?
Select an answer first
9foundation · easy
What is the role of the certificate in an IPsec VPN's IKE authentication process?
Select an answer first
10expert · hard
A security team is deciding between using CRL and OCSP for certificate revocation checking on their Junos VPN gateways. They have a large number of certificates and need to minimize the time between a certificate being revoked and it being rejected by the gateways. They also want to reduce the load on the CA. Which approach should they choose?
Select an answer first

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