Answer :
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1. When talking about security policies related to employee misconduct, we are necessarily also talking about employment law. **True**. Security policies often intersect with employment law when addressing issues related to employee behavior and misconduct in the workplace.
2. A security policy must always be a written document. **False**. While it is common for security policies to be documented in written form, they can also exist in verbal or implied formats depending on the organization's practices.
3. Guidelines are the detailed instructions that people must follow to implement the letter-of-the-law intended by the policies. **True**. Guidelines provide specific instructions on how to adhere to the overarching policies effectively.
4. Procedures are rules of thumb that make suggestions about how to implement the spirit of the policies. **False**. Procedures are more concrete than rules of thumb; they are specific steps outlining how to carry out policies in practice.
5. Security policies must be both enforceable and enforced. **True**. For security policies to be effective, they must be capable of being enforced and must be enforced consistently to ensure compliance.
6. Key lengths are measured in terms of the number of bits they contain, which is known as key strength. **True**. Key lengths are a crucial factor in determining the security of encryption systems, with longer key lengths generally being associated with higher levels of security.
7. Stream ciphers are stateless machines that replace large blocks of bits at a time. **False**. Stream ciphers operate by encrypting one bit or byte of plaintext at a time and do not replace large blocks of bits simultaneously.
