Risk Management Basics
Risk: Probability of loss or disruption, Asset: Item of value (e.g., data, systems), Threat: Entity exploiting a weakness., Vulnerability: Weakness that can be exploited., Risk Management: Identifying, evaluating, reducing, or accepting risks.
Types of Threat Actors
Script Kiddie: Uses pre-written code, lacks technical skill, wants fame, Hacktivist: Politically motivated, defaces sites or networks, Nation State/APT: Government-backed, highly sophisticated, Organized Crime:
1] Explain some Database applications. Explain advantages and disadvantages of database system.???
A database application is software used to store, manage, and access data easily.
👉 Examples:
1. Banking – stores customer and transaction details.
2. E-commerce – manages products, orders, and user info.
3. Hospitals – keeps patient records and doctor schedules.
4. Schools – stores student marks and attendance.
5. Airlines – handles bookings and flight details.
_______________________
L10 – Reliable Transfer and Connection Management
TCP Reliable Transfer:
Sequence Number
Each byte of data is assigned a sequence number. This number is used by the receiver to correctly order the data and ensure there are no missing segments
Acknowledgements
The receiver sends back an ACK to the sender for the sequence number of the next expected byte. If the sender receives the Ack before its timer expires, it knows everything up to that byte was received correctly.
Programming Languages: Chapter 1 Cheat Sheet
Expressiveness: Leverage diverse language features
Selection: Match language to task (e.g., LISP for AI, PHP for web)
Learning: Foundations ease uptake of new languages
Efficiency: Choose constructs (recursion vs. iteration) for performance
Maintenance: Better code reuse and understanding
| Domain | Focus | Language Example |
|---|---|---|
| Scientific | Floating‑point computations |
Agriculture :
Produces:
History:
Estomatitis vesicular. ( Mal de tierra , Mazamorra)
Etiología
Virus: Rhabdoviridae , género Vesiculovirus
Serotipos: Nueva Jersey e Indiana
Formato: bala , 180 x 75 nm
Zoonótica → en humanos da síntomas gripales
Afecta: bovinos, equinos, porcinos (raras veces: ovejas, cabras, llamas)
Endémica: América Central, del Sur y México
No existe fuera del hemisferio occidental
Contacto directo con animales lesionados
Insectos hematófagos Mosca negra - Mosca de arena
Prevalencia
Pandas is a powerful and flexible Python library used for data manipulation, analysis, and cleaning. It is suitable for handling different kinds of data, such as:
Essential Pandas
1. Three Measurable Challenges Technology Poses to Traditional Banking Systems (with focus on Blockchain & Security):
|
Slope‑intercept form of a line: y = m x + b Point‑slope form of a line: y – y₁ = m (x – x₁) Standard form of a line: A x + B y = C Rate of change (slope): Δy/Δx = (y₁ – y₂)/(x₁ – x₂) Quadratic equation: a x² + b x + c = 0 Quadratic formula: x = [–b ± √(b² – 4 a c)]/(2 a) Sphere surface area: SA = 4 π r² Sphere volume: V = (4/3) π r³ Cone surface area: SA = π r (r + h) Cone volume: V = (1/3) π r² h Trapezoid area: A = ½ (b₁ + b₂)