350-701 Practice Test

model-driven telemetry

https://developer.cisco.com/docs/ios-xe/#!streaming-telemetry-quick-start-guide

RSA

HMAC-SHA1/SHA2

AES-CBC

Cryptographic algorithms defined for use with
IPsec include:+ HMAC-SHA1/SHA2 for integrity protection and authenticity.+ TripleDESCBC
for confidentiality+ AES-CBC and AES-CTR for confidentiality.+ AES-GCM and
ChaCha20-Poly1305 providing confidentiality and authentication together efficiently.

The attack is fragmented into groups of 8 octets before transmission.

Malformed packets are used to crash systems.

ExplanationPing of Death (PoD) is a type of Denial of Service (DoS) attack in
which an attacker attempts to crash,destabilize, or freeze the targeted computer or service
by sending malformed or oversized packets using a simple ping command.A correctlyformed
ping packet is typically 56 bytes in size, or 64 bytes when the ICMP header is
considered,and 84 including Internet Protocol version 4 header. However, any IPv4 packet
(including pings) may be as large as 65,535 bytes. Some computer systems were never
designed to properly handle a ping packet larger than the maximum packet size because it
violates the Internet Protocol documentedLike other large but well-formed packets, a ping
of death is fragmented into groups of 8 octets beforetransmission. However, when the
target computer reassembles the malformed packet, a buffer overflow can occur, causing a
system crash and potentially allowing the injection of malicious code.

UDP 1700

CoA Messages are sent on two different udp ports depending on the platform. Cisco standardizes on UDP port1700, while the actual RFC calls out using UDP port 3799.