LPI Security Essentials (020-100) Certification Sample Questions

Security Essentials Dumps, 020-100 Dumps, 020-100 PDF, Security Essentials VCE, LPI 020-100 VCE, LPI Security Essentials 020 PDF The purpose of this Sample Question Set is to provide you with information about the LPI Security Essentials - 020 exam. These sample questions will make you very familiar with both the type and the difficulty level of the questions on the 020-100 certification test. To get familiar with real exam environment, we suggest you try our Sample LPI Security Essentials Certification Practice Exam. This sample practice exam gives you the feeling of reality and is a clue to the questions asked in the actual LPI Security Essentials certification exam.

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LPI 020-100 Sample Questions:

01. To secure an open WiFi network, a user configures the access point to accept only devices whose MAC addresses are on an allow list, and leaves encryption switched off.

Why is this weak protection?

a) Allowed MAC addresses can be seen over the air and copied

b) MAC filtering stops only devices that use IPv6 addresses

c) Access points cannot read the MAC addresses of WiFi devices

d) MAC filtering applies only to wired network ports

02. Alice sends Bob a contract with OpenPGP. She signed it with her private key and encrypted it with Bob's public key.

Which keys does Bob's mail client use to read the contract and to check the signature?

a) Alice's private key to decrypt and Bob's public key to verify

b) Bob's public key to decrypt and Alice's private key to verify

c) Alice's public key to decrypt, which also verifies the signature

d) Bob's private key to decrypt and Alice's public key to verify

03. A user installs every operating system and application update on her laptop as soon as it appears. Her home router has run the same firmware since she bought it five years ago, although the manufacturer has since published several security fixes for it.

Which statement about her setup is accurate?

a) The laptop's updates also patch the router whenever they are connected

b) Firmware runs below the operating system, so it cannot contain flaws

c) The router stays exposed until its firmware is updated separately

d) A router is safe as long as its WiFi uses WPA2 encryption

04. An accountant must email a client a spreadsheet of salary data. Neither of them uses OpenPGP or S/MIME. The file must stay unreadable if the email is forwarded or intercepted.

Which method meets this requirement?

a) Encrypt the file and give the client the password by phone

b) Encrypt the file and include the password in the email text

c) Mark the email as confidential in its subject line

d) Send it through mail servers that use TLS

05. When an email is encrypted with OpenPGP, the message body is encrypted with a randomly generated symmetric session key, and only that session key is encrypted with the recipient's public key.

Why is the message not simply encrypted with the recipient's public key directly?

a) Public-key algorithms can encrypt data only after it has been hashed with a function such as SHA-256

b) The separate session key lets relaying mail servers decrypt the body and scan it for malware

c) Data encrypted with a public key can afterwards be decrypted only with the sender's private key

d) Symmetric ciphers encrypt bulk data much faster; the public key only protects the session key

06. At an airport, a traveler's phone battery is almost empty. The only free charging point is a public USB port. The traveler has a USB cable but no power adapter.

Which action addresses the specific risk of charging from this port?

a) Connecting to a VPN before plugging the cable into the port

b) Using a charge-only adapter that blocks the USB data lines

c) Choosing a USB port that is labeled for fast charging

d) Turning off Bluetooth and WiFi while the phone is charging

07. A laptop has the IP address 192.168.1.25 with the subnet mask 255.255.255.0 and the default router 192.168.1.1.

Traffic to which destination is delivered directly on the local network rather than through the default router?

a) 192.168.2.25

b) 192.168.10.1

c) 192.168.1.200

d) 10.168.1.25

08. A web server presents a certificate containing these fields:

Subject: CN=shop.example.net

Issuer: CN=Example Intermediate CA 2

To check that the certificate was really signed by its issuer and has not been altered, which key does the browser use?

a) The public key of shop.example.net

b) The public key of Example Intermediate CA 2

c) The private key of Example Intermediate CA 2

d) The private key of shop.example.net

09. Attackers steal an online service's password database. Every password is stored as a salted hash, with a unique random salt for each user.

Whose password are the attackers MOST likely to recover?

a) A user whose password is a long random passphrase

b) No user, because salting makes recovery impossible

c) A user with a 16-character random password including symbols

d) A user whose password is the common word dragon

10. An hour ago at home, a user's webmail site loaded without any warning. Now, on a hotel's WiFi network, the browser warns that the connection is not private. The certificate it received shows Issuer: CN=HotelNet Secure Gateway, a name that is not in the browser's trusted store.

What is the MOST likely explanation, and what should the user do?

a) The hotel's WiFi uses WPA2, which replaces site certificates; continue past the warning

b) The webmail certificate expired during the last hour; continue, since the site is a known one

c) The hotel network is intercepting the connection; do not continue past the warning

d) The browser's trusted store is outdated; add the HotelNet issuer to it and reload the page

Answers:

Question: 01 Answer: a	Question: 02 Answer: d	Question: 03 Answer: c	Question: 04 Answer: a	Question: 05 Answer: d
Question: 06 Answer: b	Question: 07 Answer: c	Question: 08 Answer: b	Question: 09 Answer: d	Question: 10 Answer: c

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