1 / 5
What is the 'chain of trust' in PKI?
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The chain of trust links a server's leaf certificate through intermediate CAs to a trusted root.
2 / 5
A browser trusts a site because the root CA is in its 'trust store'. What is a trust store?
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The trust store holds root certificates the OS or browser inherently trusts as anchors.
3 / 5
A site sends an 'incomplete chain'. What problem does this cause?
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Without the intermediate certificates, clients can't link the leaf to a trusted root and reject it.
4 / 5
What is an 'intermediate certificate'?
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Intermediates are signed by the root and in turn sign leaf certs, keeping the root key offline and safer.
5 / 5
Which sentence correctly uses 'leaf certificate'?
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The leaf (end-entity) certificate is the one issued to the actual server or client.